Home / 86,672,972.64-129,971,663.56-32,782,493.28

Finding the Fourth Proportional to 86,672,972.64, 129,971,663.56 and 32,782,493.28

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Solution

The fourth proportional to 86,672,972.64, 129,971,663.56 and 32,782,493.28 is: 49,159,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,672,972.64 : 129,971,663.56 = 32,782,493.28 : x
  2. Step 2: Convert to fraction form
    86,672,972.64/129,971,663.56 = 32,782,493.28/x
  3. Step 3: Cross multiply
    86,672,972.64x = 129,971,663.56 × 32,782,493.28
  4. Step 4: Simplify right side
    86,672,972.64x = 4,260,795,187,246,121
  5. Step 5: Solve for x
    x = 4,260,795,187,246,121/86,672,972.64
  6. Step 6: Final answer
    x = 49,159,444.49

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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.