Home / 20,354,979.60-30,546,466.20-8,387,715.60

Finding the Fourth Proportional to 20,354,979.60, 30,546,466.20 and 8,387,715.60

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Solution

The fourth proportional to 20,354,979.60, 30,546,466.20 and 8,387,715.60 is: 12,587,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354,979.60 : 30,546,466.20 = 8,387,715.60 : x
  2. Step 2: Convert to fraction form
    20,354,979.60/30,546,466.20 = 8,387,715.60/x
  3. Step 3: Cross multiply
    20,354,979.60x = 30,546,466.20 × 8,387,715.60
  4. Step 4: Simplify right side
    20,354,979.60x = 256,215,071,070,612.69
  5. Step 5: Solve for x
    x = 256,215,071,070,612.69/20,354,979.60
  6. Step 6: Final answer
    x = 12,587,341.09

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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.