Home / 135,836,668.52-187,459,215.24-76,308,477.92

Finding the Fourth Proportional to 135,836,668.52, 187,459,215.24 and 76,308,477.92

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Solution

The fourth proportional to 135,836,668.52, 187,459,215.24 and 76,308,477.92 is: 105,308,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,836,668.52 : 187,459,215.24 = 76,308,477.92 : x
  2. Step 2: Convert to fraction form
    135,836,668.52/187,459,215.24 = 76,308,477.92/x
  3. Step 3: Cross multiply
    135,836,668.52x = 187,459,215.24 × 76,308,477.92
  4. Step 4: Simplify right side
    135,836,668.52x = 14,304,727,387,042,068
  5. Step 5: Solve for x
    x = 14,304,727,387,042,068/135,836,668.52
  6. Step 6: Final answer
    x = 105,308,290.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.