Home / 15,751,956.52-21,742,505.76-9,138,215.80

Finding the Fourth Proportional to 15,751,956.52, 21,742,505.76 and 9,138,215.80

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Solution

The fourth proportional to 15,751,956.52, 21,742,505.76 and 9,138,215.80 is: 12,613,525.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751,956.52 : 21,742,505.76 = 9,138,215.80 : x
  2. Step 2: Convert to fraction form
    15,751,956.52/21,742,505.76 = 9,138,215.80/x
  3. Step 3: Cross multiply
    15,751,956.52x = 21,742,505.76 × 9,138,215.80
  4. Step 4: Simplify right side
    15,751,956.52x = 198,687,709,667,623.03
  5. Step 5: Solve for x
    x = 198,687,709,667,623.03/15,751,956.52
  6. Step 6: Final answer
    x = 12,613,525.78

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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.