Home / 705,025,659.40-1,057,538,489.10-429,120,737.80

Finding the Fourth Proportional to 705,025,659.40, 1,057,538,489.10 and 429,120,737.80

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Solution

The fourth proportional to 705,025,659.40, 1,057,538,489.10 and 429,120,737.80 is: 643,681,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,025,659.40 : 1,057,538,489.10 = 429,120,737.80 : x
  2. Step 2: Convert to fraction form
    705,025,659.40/1,057,538,489.10 = 429,120,737.80/x
  3. Step 3: Cross multiply
    705,025,659.40x = 1,057,538,489.10 × 429,120,737.80
  4. Step 4: Simplify right side
    705,025,659.40x = 453,811,696,694,489,280
  5. Step 5: Solve for x
    x = 453,811,696,694,489,280/705,025,659.40
  6. Step 6: Final answer
    x = 643,681,106.70

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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.