Home / 80,001,789.48-120,001,809.42-19,417,515.48

Finding the Fourth Proportional to 80,001,789.48, 120,001,809.42 and 19,417,515.48

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Solution

The fourth proportional to 80,001,789.48, 120,001,809.42 and 19,417,515.48 is: 29,126,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,001,789.48 : 120,001,809.42 = 19,417,515.48 : x
  2. Step 2: Convert to fraction form
    80,001,789.48/120,001,809.42 = 19,417,515.48/x
  3. Step 3: Cross multiply
    80,001,789.48x = 120,001,809.42 × 19,417,515.48
  4. Step 4: Simplify right side
    80,001,789.48x = 2,330,136,992,040,860
  5. Step 5: Solve for x
    x = 2,330,136,992,040,860/80,001,789.48
  6. Step 6: Final answer
    x = 29,126,060.89

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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.