Home / 138,268,098.72-207,402,217.20-36,031,877.28

Finding the Fourth Proportional to 138,268,098.72, 207,402,217.20 and 36,031,877.28

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Solution

The fourth proportional to 138,268,098.72, 207,402,217.20 and 36,031,877.28 is: 54,047,833.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,268,098.72 : 207,402,217.20 = 36,031,877.28 : x
  2. Step 2: Convert to fraction form
    138,268,098.72/207,402,217.20 = 36,031,877.28/x
  3. Step 3: Cross multiply
    138,268,098.72x = 207,402,217.20 × 36,031,877.28
  4. Step 4: Simplify right side
    138,268,098.72x = 7,473,091,237,750,305
  5. Step 5: Solve for x
    x = 7,473,091,237,750,305/138,268,098.72
  6. Step 6: Final answer
    x = 54,047,833.93

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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.