Home / 20,285,287.05-30,429,337.11-8,154,755.31

Finding the Fourth Proportional to 20,285,287.05, 30,429,337.11 and 8,154,755.31

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Solution

The fourth proportional to 20,285,287.05, 30,429,337.11 and 8,154,755.31 is: 12,232,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285,287.05 : 30,429,337.11 = 8,154,755.31 : x
  2. Step 2: Convert to fraction form
    20,285,287.05/30,429,337.11 = 8,154,755.31/x
  3. Step 3: Cross multiply
    20,285,287.05x = 30,429,337.11 × 8,154,755.31
  4. Step 4: Simplify right side
    20,285,287.05x = 248,143,798,377,552.53
  5. Step 5: Solve for x
    x = 248,143,798,377,552.53/20,285,287.05
  6. Step 6: Final answer
    x = 12,232,698.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.