Home / 1,208,520,087.70-1,812,780,131.55-634,016,766.10

Finding the Fourth Proportional to 1,208,520,087.70, 1,812,780,131.55 and 634,016,766.10

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Solution

The fourth proportional to 1,208,520,087.70, 1,812,780,131.55 and 634,016,766.10 is: 951,025,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,520,087.70 : 1,812,780,131.55 = 634,016,766.10 : x
  2. Step 2: Convert to fraction form
    1,208,520,087.70/1,812,780,131.55 = 634,016,766.10/x
  3. Step 3: Cross multiply
    1,208,520,087.70x = 1,812,780,131.55 × 634,016,766.10
  4. Step 4: Simplify right side
    1,208,520,087.70x = 1,149,332,996,655,663,616
  5. Step 5: Solve for x
    x = 1,149,332,996,655,663,616/1,208,520,087.70
  6. Step 6: Final answer
    x = 951,025,149.15

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Double scale
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Similar ratio
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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.