Home / 145,618,876.28-200,952,721.50-79,539,363.96

Finding the Fourth Proportional to 145,618,876.28, 200,952,721.50 and 79,539,363.96

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Solution

The fourth proportional to 145,618,876.28, 200,952,721.50 and 79,539,363.96 is: 109,763,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,618,876.28 : 200,952,721.50 = 79,539,363.96 : x
  2. Step 2: Convert to fraction form
    145,618,876.28/200,952,721.50 = 79,539,363.96/x
  3. Step 3: Cross multiply
    145,618,876.28x = 200,952,721.50 × 79,539,363.96
  4. Step 4: Simplify right side
    145,618,876.28x = 15,983,651,654,141,016
  5. Step 5: Solve for x
    x = 15,983,651,654,141,016/145,618,876.28
  6. Step 6: Final answer
    x = 109,763,597.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.