Home / 7,172,116.70-9,897,232.33-3,908,861.19

Finding the Fourth Proportional to 7,172,116.70, 9,897,232.33 and 3,908,861.19

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Solution

The fourth proportional to 7,172,116.70, 9,897,232.33 and 3,908,861.19 is: 5,394,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,116.70 : 9,897,232.33 = 3,908,861.19 : x
  2. Step 2: Convert to fraction form
    7,172,116.70/9,897,232.33 = 3,908,861.19/x
  3. Step 3: Cross multiply
    7,172,116.70x = 9,897,232.33 × 3,908,861.19
  4. Step 4: Simplify right side
    7,172,116.70x = 38,686,907,333,378.12
  5. Step 5: Solve for x
    x = 38,686,907,333,378.12/7,172,116.70
  6. Step 6: Final answer
    x = 5,394,071.09

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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.