Home / 80,569,231.49-120,877,901.72-75,756,820.61

Finding the Fourth Proportional to 80,569,231.49, 120,877,901.72 and 75,756,820.61

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Solution

The fourth proportional to 80,569,231.49, 120,877,901.72 and 75,756,820.61 is: 113,657,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,569,231.49 : 120,877,901.72 = 75,756,820.61 : x
  2. Step 2: Convert to fraction form
    80,569,231.49/120,877,901.72 = 75,756,820.61/x
  3. Step 3: Cross multiply
    80,569,231.49x = 120,877,901.72 × 75,756,820.61
  4. Step 4: Simplify right side
    80,569,231.49x = 9,157,325,516,522,748
  5. Step 5: Solve for x
    x = 9,157,325,516,522,748/80,569,231.49
  6. Step 6: Final answer
    x = 113,657,848.62

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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.