Home / 65,138,519.25-97,710,921.18-21,418,309.80

Finding the Fourth Proportional to 65,138,519.25, 97,710,921.18 and 21,418,309.80

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Solution

The fourth proportional to 65,138,519.25, 97,710,921.18 and 21,418,309.80 is: 32,128,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,138,519.25 : 97,710,921.18 = 21,418,309.80 : x
  2. Step 2: Convert to fraction form
    65,138,519.25/97,710,921.18 = 21,418,309.80/x
  3. Step 3: Cross multiply
    65,138,519.25x = 97,710,921.18 × 21,418,309.80
  4. Step 4: Simplify right side
    65,138,519.25x = 2,092,802,780,676,621.75
  5. Step 5: Solve for x
    x = 2,092,802,780,676,621.75/65,138,519.25
  6. Step 6: Final answer
    x = 32,128,497.93

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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.