Home / 80,890,127.20-121,335,190.80-29,761,566.40

Finding the Fourth Proportional to 80,890,127.20, 121,335,190.80 and 29,761,566.40

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Solution

The fourth proportional to 80,890,127.20, 121,335,190.80 and 29,761,566.40 is: 44,642,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,890,127.20 : 121,335,190.80 = 29,761,566.40 : x
  2. Step 2: Convert to fraction form
    80,890,127.20/121,335,190.80 = 29,761,566.40/x
  3. Step 3: Cross multiply
    80,890,127.20x = 121,335,190.80 × 29,761,566.40
  4. Step 4: Simplify right side
    80,890,127.20x = 3,611,125,337,650,869
  5. Step 5: Solve for x
    x = 3,611,125,337,650,869/80,890,127.20
  6. Step 6: Final answer
    x = 44,642,349.60

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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.