Home / 7,172,119.62-9,897,236.33-3,908,864.12

Finding the Fourth Proportional to 7,172,119.62, 9,897,236.33 and 3,908,864.12

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Solution

The fourth proportional to 7,172,119.62, 9,897,236.33 and 3,908,864.12 is: 5,394,075.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,119.62 : 9,897,236.33 = 3,908,864.12 : x
  2. Step 2: Convert to fraction form
    7,172,119.62/9,897,236.33 = 3,908,864.12/x
  3. Step 3: Cross multiply
    7,172,119.62x = 9,897,236.33 × 3,908,864.12
  4. Step 4: Simplify right side
    7,172,119.62x = 38,686,951,908,466.98
  5. Step 5: Solve for x
    x = 38,686,951,908,466.98/7,172,119.62
  6. Step 6: Final answer
    x = 5,394,075.11

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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.