Home / 516,781,774.24-774,860,435.28-205,937,211.04

Finding the Fourth Proportional to 516,781,774.24, 774,860,435.28 and 205,937,211.04

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Solution

The fourth proportional to 516,781,774.24, 774,860,435.28 and 205,937,211.04 is: 308,781,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,781,774.24 : 774,860,435.28 = 205,937,211.04 : x
  2. Step 2: Convert to fraction form
    516,781,774.24/774,860,435.28 = 205,937,211.04/x
  3. Step 3: Cross multiply
    516,781,774.24x = 774,860,435.28 × 205,937,211.04
  4. Step 4: Simplify right side
    516,781,774.24x = 159,572,596,986,803,616
  5. Step 5: Solve for x
    x = 159,572,596,986,803,616/516,781,774.24
  6. Step 6: Final answer
    x = 308,781,394.66

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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.