Home / 142,526,112.80-213,940,349.76-126,237,140

Finding the Fourth Proportional to 142,526,112.80, 213,940,349.76 and 126,237,140

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Solution

The fourth proportional to 142,526,112.80, 213,940,349.76 and 126,237,140 is: 189,489,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,526,112.80 : 213,940,349.76 = 126,237,140 : x
  2. Step 2: Convert to fraction form
    142,526,112.80/213,940,349.76 = 126,237,140/x
  3. Step 3: Cross multiply
    142,526,112.80x = 213,940,349.76 × 126,237,140
  4. Step 4: Simplify right side
    142,526,112.80x = 27,007,217,884,302,084
  5. Step 5: Solve for x
    x = 27,007,217,884,302,084/142,526,112.80
  6. Step 6: Final answer
    x = 189,489,612.49

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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.