Home / 68,221,409.60-102,388,101.60-65,981,921.60

Finding the Fourth Proportional to 68,221,409.60, 102,388,101.60 and 65,981,921.60

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Solution

The fourth proportional to 68,221,409.60, 102,388,101.60 and 65,981,921.60 is: 99,027,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,221,409.60 : 102,388,101.60 = 65,981,921.60 : x
  2. Step 2: Convert to fraction form
    68,221,409.60/102,388,101.60 = 65,981,921.60/x
  3. Step 3: Cross multiply
    68,221,409.60x = 102,388,101.60 × 65,981,921.60
  4. Step 4: Simplify right side
    68,221,409.60x = 6,755,763,692,544,034
  5. Step 5: Solve for x
    x = 6,755,763,692,544,034/68,221,409.60
  6. Step 6: Final answer
    x = 99,027,031.72

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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.