Home / 20,908,581.86-31,355,799.06-7,951,654.19

Finding the Fourth Proportional to 20,908,581.86, 31,355,799.06 and 7,951,654.19

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Solution

The fourth proportional to 20,908,581.86, 31,355,799.06 and 7,951,654.19 is: 11,924,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908,581.86 : 31,355,799.06 = 7,951,654.19 : x
  2. Step 2: Convert to fraction form
    20,908,581.86/31,355,799.06 = 7,951,654.19/x
  3. Step 3: Cross multiply
    20,908,581.86x = 31,355,799.06 × 7,951,654.19
  4. Step 4: Simplify right side
    20,908,581.86x = 249,330,471,084,455.25
  5. Step 5: Solve for x
    x = 249,330,471,084,455.25/20,908,581.86
  6. Step 6: Final answer
    x = 11,924,791.11

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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.