Home / 38,909,424.78-53,695,217.30-21,268,351.04

Finding the Fourth Proportional to 38,909,424.78, 53,695,217.30 and 21,268,351.04

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Solution

The fourth proportional to 38,909,424.78, 53,695,217.30 and 21,268,351.04 is: 29,350,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,909,424.78 : 53,695,217.30 = 21,268,351.04 : x
  2. Step 2: Convert to fraction form
    38,909,424.78/53,695,217.30 = 21,268,351.04/x
  3. Step 3: Cross multiply
    38,909,424.78x = 53,695,217.30 × 21,268,351.04
  4. Step 4: Simplify right side
    38,909,424.78x = 1,142,008,730,330,663.25
  5. Step 5: Solve for x
    x = 1,142,008,730,330,663.25/38,909,424.78
  6. Step 6: Final answer
    x = 29,350,439.82

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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.