Home / 12,097,129.80-18,145,694.70-9,111,145.80

Finding the Fourth Proportional to 12,097,129.80, 18,145,694.70 and 9,111,145.80

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Solution

The fourth proportional to 12,097,129.80, 18,145,694.70 and 9,111,145.80 is: 13,666,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,129.80 : 18,145,694.70 = 9,111,145.80 : x
  2. Step 2: Convert to fraction form
    12,097,129.80/18,145,694.70 = 9,111,145.80/x
  3. Step 3: Cross multiply
    12,097,129.80x = 18,145,694.70 × 9,111,145.80
  4. Step 4: Simplify right side
    12,097,129.80x = 165,328,070,053,987.28
  5. Step 5: Solve for x
    x = 165,328,070,053,987.28/12,097,129.80
  6. Step 6: Final answer
    x = 13,666,718.70

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Similar ratio
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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.