Home / 86,270,221.52-129,406,476.36-28,762,511.12

Finding the Fourth Proportional to 86,270,221.52, 129,406,476.36 and 28,762,511.12

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Solution

The fourth proportional to 86,270,221.52, 129,406,476.36 and 28,762,511.12 is: 43,144,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270,221.52 : 129,406,476.36 = 28,762,511.12 : x
  2. Step 2: Convert to fraction form
    86,270,221.52/129,406,476.36 = 28,762,511.12/x
  3. Step 3: Cross multiply
    86,270,221.52x = 129,406,476.36 × 28,762,511.12
  4. Step 4: Simplify right side
    86,270,221.52x = 3,722,055,215,304,517
  5. Step 5: Solve for x
    x = 3,722,055,215,304,517/86,270,221.52
  6. Step 6: Final answer
    x = 43,144,148.12

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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.