Home / 644,458,515.20-966,687,772.80-579,961,260.80

Finding the Fourth Proportional to 644,458,515.20, 966,687,772.80 and 579,961,260.80

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Solution

The fourth proportional to 644,458,515.20, 966,687,772.80 and 579,961,260.80 is: 869,941,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,458,515.20 : 966,687,772.80 = 579,961,260.80 : x
  2. Step 2: Convert to fraction form
    644,458,515.20/966,687,772.80 = 579,961,260.80/x
  3. Step 3: Cross multiply
    644,458,515.20x = 966,687,772.80 × 579,961,260.80
  4. Step 4: Simplify right side
    644,458,515.20x = 560,641,459,513,031,872
  5. Step 5: Solve for x
    x = 560,641,459,513,031,872/644,458,515.20
  6. Step 6: Final answer
    x = 869,941,891.20

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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.