Home / 128,951,572.20-193,427,358.30-112,155,412.20

Finding the Fourth Proportional to 128,951,572.20, 193,427,358.30 and 112,155,412.20

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Solution

The fourth proportional to 128,951,572.20, 193,427,358.30 and 112,155,412.20 is: 168,233,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,951,572.20 : 193,427,358.30 = 112,155,412.20 : x
  2. Step 2: Convert to fraction form
    128,951,572.20/193,427,358.30 = 112,155,412.20/x
  3. Step 3: Cross multiply
    128,951,572.20x = 193,427,358.30 × 112,155,412.20
  4. Step 4: Simplify right side
    128,951,572.20x = 21,693,925,100,893,592
  5. Step 5: Solve for x
    x = 21,693,925,100,893,592/128,951,572.20
  6. Step 6: Final answer
    x = 168,233,118.30

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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.