Home / 28,062,007.20-42,093,010.80-12,945,463.20

Finding the Fourth Proportional to 28,062,007.20, 42,093,010.80 and 12,945,463.20

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Solution

The fourth proportional to 28,062,007.20, 42,093,010.80 and 12,945,463.20 is: 19,418,194.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062,007.20 : 42,093,010.80 = 12,945,463.20 : x
  2. Step 2: Convert to fraction form
    28,062,007.20/42,093,010.80 = 12,945,463.20/x
  3. Step 3: Cross multiply
    28,062,007.20x = 42,093,010.80 × 12,945,463.20
  4. Step 4: Simplify right side
    28,062,007.20x = 544,913,522,288,602.50
  5. Step 5: Solve for x
    x = 544,913,522,288,602.50/28,062,007.20
  6. Step 6: Final answer
    x = 19,418,194.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.