Home / 13,361,451.10-20,042,176.65-6,642,987.10

Finding the Fourth Proportional to 13,361,451.10, 20,042,176.65 and 6,642,987.10

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Solution

The fourth proportional to 13,361,451.10, 20,042,176.65 and 6,642,987.10 is: 9,964,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,451.10 : 20,042,176.65 = 6,642,987.10 : x
  2. Step 2: Convert to fraction form
    13,361,451.10/20,042,176.65 = 6,642,987.10/x
  3. Step 3: Cross multiply
    13,361,451.10x = 20,042,176.65 × 6,642,987.10
  4. Step 4: Simplify right side
    13,361,451.10x = 133,139,920,941,871.20
  5. Step 5: Solve for x
    x = 133,139,920,941,871.20/13,361,451.10
  6. Step 6: Final answer
    x = 9,964,480.65

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Double scale
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Similar ratio
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1.5x scale

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.