Home / 72,427,009.60-108,640,514.40-38,414,785.60

Finding the Fourth Proportional to 72,427,009.60, 108,640,514.40 and 38,414,785.60

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Solution

The fourth proportional to 72,427,009.60, 108,640,514.40 and 38,414,785.60 is: 57,622,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,427,009.60 : 108,640,514.40 = 38,414,785.60 : x
  2. Step 2: Convert to fraction form
    72,427,009.60/108,640,514.40 = 38,414,785.60/x
  3. Step 3: Cross multiply
    72,427,009.60x = 108,640,514.40 × 38,414,785.60
  4. Step 4: Simplify right side
    72,427,009.60x = 4,173,402,068,149,713
  5. Step 5: Solve for x
    x = 4,173,402,068,149,713/72,427,009.60
  6. Step 6: Final answer
    x = 57,622,178.40

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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.