Home / 11,392,987.70-15,721,931.49-6,499,793.78

Finding the Fourth Proportional to 11,392,987.70, 15,721,931.49 and 6,499,793.78

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Solution

The fourth proportional to 11,392,987.70, 15,721,931.49 and 6,499,793.78 is: 8,969,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392,987.70 : 15,721,931.49 = 6,499,793.78 : x
  2. Step 2: Convert to fraction form
    11,392,987.70/15,721,931.49 = 6,499,793.78/x
  3. Step 3: Cross multiply
    11,392,987.70x = 15,721,931.49 × 6,499,793.78
  4. Step 4: Simplify right side
    11,392,987.70x = 102,189,312,508,288.14
  5. Step 5: Solve for x
    x = 102,189,312,508,288.14/11,392,987.70
  6. Step 6: Final answer
    x = 8,969,492.04

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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.