Home / 516,781,775.24-774,860,436.78-205,937,212.04

Finding the Fourth Proportional to 516,781,775.24, 774,860,436.78 and 205,937,212.04

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Solution

The fourth proportional to 516,781,775.24, 774,860,436.78 and 205,937,212.04 is: 308,781,396.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,781,775.24 : 774,860,436.78 = 205,937,212.04 : x
  2. Step 2: Convert to fraction form
    516,781,775.24/774,860,436.78 = 205,937,212.04/x
  3. Step 3: Cross multiply
    516,781,775.24x = 774,860,436.78 × 205,937,212.04
  4. Step 4: Simplify right side
    516,781,775.24x = 159,572,598,070,569,856
  5. Step 5: Solve for x
    x = 159,572,598,070,569,856/516,781,775.24
  6. Step 6: Final answer
    x = 308,781,396.16

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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.