Home / 15,057,070.52-20,778,714.38-8,181,550.76

Finding the Fourth Proportional to 15,057,070.52, 20,778,714.38 and 8,181,550.76

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Solution

The fourth proportional to 15,057,070.52, 20,778,714.38 and 8,181,550.76 is: 11,290,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,070.52 : 20,778,714.38 = 8,181,550.76 : x
  2. Step 2: Convert to fraction form
    15,057,070.52/20,778,714.38 = 8,181,550.76/x
  3. Step 3: Cross multiply
    15,057,070.52x = 20,778,714.38 × 8,181,550.76
  4. Step 4: Simplify right side
    15,057,070.52x = 170,002,106,427,511.91
  5. Step 5: Solve for x
    x = 170,002,106,427,511.91/15,057,070.52
  6. Step 6: Final answer
    x = 11,290,516.72

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1.5x scale

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.