Home / 13,372,904.70-20,059,357.05-8,585,999.10

Finding the Fourth Proportional to 13,372,904.70, 20,059,357.05 and 8,585,999.10

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Solution

The fourth proportional to 13,372,904.70, 20,059,357.05 and 8,585,999.10 is: 12,878,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372,904.70 : 20,059,357.05 = 8,585,999.10 : x
  2. Step 2: Convert to fraction form
    13,372,904.70/20,059,357.05 = 8,585,999.10/x
  3. Step 3: Cross multiply
    13,372,904.70x = 20,059,357.05 × 8,585,999.10
  4. Step 4: Simplify right side
    13,372,904.70x = 172,229,621,577,878.66
  5. Step 5: Solve for x
    x = 172,229,621,577,878.66/13,372,904.70
  6. Step 6: Final answer
    x = 12,878,998.65

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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.