Home / 1,424,739,909.52-1,966,093,540.32-789,633,337.78

Finding the Fourth Proportional to 1,424,739,909.52, 1,966,093,540.32 and 789,633,337.78

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Solution

The fourth proportional to 1,424,739,909.52, 1,966,093,540.32 and 789,633,337.78 is: 1,089,667,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,739,909.52 : 1,966,093,540.32 = 789,633,337.78 : x
  2. Step 2: Convert to fraction form
    1,424,739,909.52/1,966,093,540.32 = 789,633,337.78/x
  3. Step 3: Cross multiply
    1,424,739,909.52x = 1,966,093,540.32 × 789,633,337.78
  4. Step 4: Simplify right side
    1,424,739,909.52x = 1,552,493,004,630,578,432
  5. Step 5: Solve for x
    x = 1,552,493,004,630,578,432/1,424,739,909.52
  6. Step 6: Final answer
    x = 1,089,667,660.92

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Half scale
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Double scale
Find fourth proportional to 1,424,739,910.52, 1,966,093,541.70 and 789,633,338.78
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.