Home / 7,172,115.10-9,897,230.13-3,908,859.59

Finding the Fourth Proportional to 7,172,115.10, 9,897,230.13 and 3,908,859.59

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Solution

The fourth proportional to 7,172,115.10, 9,897,230.13 and 3,908,859.59 is: 5,394,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,115.10 : 9,897,230.13 = 3,908,859.59 : x
  2. Step 2: Convert to fraction form
    7,172,115.10/9,897,230.13 = 3,908,859.59/x
  3. Step 3: Cross multiply
    7,172,115.10x = 9,897,230.13 × 3,908,859.59
  4. Step 4: Simplify right side
    7,172,115.10x = 38,686,882,918,172.30
  5. Step 5: Solve for x
    x = 38,686,882,918,172.30/7,172,115.10
  6. Step 6: Final answer
    x = 5,394,068.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.