Home / 20,328,245.92-28,053,034.56-11,161,482.40

Finding the Fourth Proportional to 20,328,245.92, 28,053,034.56 and 11,161,482.40

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Solution

The fourth proportional to 20,328,245.92, 28,053,034.56 and 11,161,482.40 is: 15,402,876.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328,245.92 : 28,053,034.56 = 11,161,482.40 : x
  2. Step 2: Convert to fraction form
    20,328,245.92/28,053,034.56 = 11,161,482.40/x
  3. Step 3: Cross multiply
    20,328,245.92x = 28,053,034.56 × 11,161,482.40
  4. Step 4: Simplify right side
    20,328,245.92x = 313,113,451,508,031.75
  5. Step 5: Solve for x
    x = 313,113,451,508,031.75/20,328,245.92
  6. Step 6: Final answer
    x = 15,402,876.01

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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.