Home / 82,715,412.80-124,073,119.20-21,304,452.80

Finding the Fourth Proportional to 82,715,412.80, 124,073,119.20 and 21,304,452.80

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Solution

The fourth proportional to 82,715,412.80, 124,073,119.20 and 21,304,452.80 is: 31,956,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,715,412.80 : 124,073,119.20 = 21,304,452.80 : x
  2. Step 2: Convert to fraction form
    82,715,412.80/124,073,119.20 = 21,304,452.80/x
  3. Step 3: Cross multiply
    82,715,412.80x = 124,073,119.20 × 21,304,452.80
  4. Step 4: Simplify right side
    82,715,412.80x = 2,643,309,911,745,174
  5. Step 5: Solve for x
    x = 2,643,309,911,745,174/82,715,412.80
  6. Step 6: Final answer
    x = 31,956,679.20

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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.