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Finding the Fourth Proportional to 580,656,043.80, 870,984,065.70 and 257,539,915.80

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Solution

The fourth proportional to 580,656,043.80, 870,984,065.70 and 257,539,915.80 is: 386,309,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,656,043.80 : 870,984,065.70 = 257,539,915.80 : x
  2. Step 2: Convert to fraction form
    580,656,043.80/870,984,065.70 = 257,539,915.80/x
  3. Step 3: Cross multiply
    580,656,043.80x = 870,984,065.70 × 257,539,915.80
  4. Step 4: Simplify right side
    580,656,043.80x = 224,313,162,943,519,680
  5. Step 5: Solve for x
    x = 224,313,162,943,519,680/580,656,043.80
  6. Step 6: Final answer
    x = 386,309,873.70

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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.