Home / 15,218,330.24-21,001,293.92-8,342,860.88

Finding the Fourth Proportional to 15,218,330.24, 21,001,293.92 and 8,342,860.88

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Solution

The fourth proportional to 15,218,330.24, 21,001,293.92 and 8,342,860.88 is: 11,513,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,330.24 : 21,001,293.92 = 8,342,860.88 : x
  2. Step 2: Convert to fraction form
    15,218,330.24/21,001,293.92 = 8,342,860.88/x
  3. Step 3: Cross multiply
    15,218,330.24x = 21,001,293.92 × 8,342,860.88
  4. Step 4: Simplify right side
    15,218,330.24x = 175,210,873,474,549.88
  5. Step 5: Solve for x
    x = 175,210,873,474,549.88/15,218,330.24
  6. Step 6: Final answer
    x = 11,513,147.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.