Home / 17,389,421.40-26,084,132.10-8,780,077.20

Finding the Fourth Proportional to 17,389,421.40, 26,084,132.10 and 8,780,077.20

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Solution

The fourth proportional to 17,389,421.40, 26,084,132.10 and 8,780,077.20 is: 13,170,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,389,421.40 : 26,084,132.10 = 8,780,077.20 : x
  2. Step 2: Convert to fraction form
    17,389,421.40/26,084,132.10 = 8,780,077.20/x
  3. Step 3: Cross multiply
    17,389,421.40x = 26,084,132.10 × 8,780,077.20
  4. Step 4: Simplify right side
    17,389,421.40x = 229,020,693,532,998.12
  5. Step 5: Solve for x
    x = 229,020,693,532,998.12/17,389,421.40
  6. Step 6: Final answer
    x = 13,170,115.80

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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.