Home / 12,097,279.20-18,145,918.80-9,997,759.20

Finding the Fourth Proportional to 12,097,279.20, 18,145,918.80 and 9,997,759.20

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Solution

The fourth proportional to 12,097,279.20, 18,145,918.80 and 9,997,759.20 is: 14,996,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,279.20 : 18,145,918.80 = 9,997,759.20 : x
  2. Step 2: Convert to fraction form
    12,097,279.20/18,145,918.80 = 9,997,759.20/x
  3. Step 3: Cross multiply
    12,097,279.20x = 18,145,918.80 × 9,997,759.20
  4. Step 4: Simplify right side
    12,097,279.20x = 181,418,526,625,152.97
  5. Step 5: Solve for x
    x = 181,418,526,625,152.97/12,097,279.20
  6. Step 6: Final answer
    x = 14,996,638.80

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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.