Home / 20,746,649.20-31,119,682.20-9,387,079.60

Finding the Fourth Proportional to 20,746,649.20, 31,119,682.20 and 9,387,079.60

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Solution

The fourth proportional to 20,746,649.20, 31,119,682.20 and 9,387,079.60 is: 14,080,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746,649.20 : 31,119,682.20 = 9,387,079.60 : x
  2. Step 2: Convert to fraction form
    20,746,649.20/31,119,682.20 = 9,387,079.60/x
  3. Step 3: Cross multiply
    20,746,649.20x = 31,119,682.20 × 9,387,079.60
  4. Step 4: Simplify right side
    20,746,649.20x = 292,122,933,938,103.12
  5. Step 5: Solve for x
    x = 292,122,933,938,103.12/20,746,649.20
  6. Step 6: Final answer
    x = 14,080,487.46

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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.