Home / 130,098,691.08-194,887,841.94-78,254,660.52

Finding the Fourth Proportional to 130,098,691.08, 194,887,841.94 and 78,254,660.52

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Solution

The fourth proportional to 130,098,691.08, 194,887,841.94 and 78,254,660.52 is: 117,225,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,098,691.08 : 194,887,841.94 = 78,254,660.52 : x
  2. Step 2: Convert to fraction form
    130,098,691.08/194,887,841.94 = 78,254,660.52/x
  3. Step 3: Cross multiply
    130,098,691.08x = 194,887,841.94 × 78,254,660.52
  4. Step 4: Simplify right side
    130,098,691.08x = 15,250,881,910,490,118
  5. Step 5: Solve for x
    x = 15,250,881,910,490,118/130,098,691.08
  6. Step 6: Final answer
    x = 117,225,483.08

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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.