Home / 7,871,191.70-11,812,036.35-3,609,166.10

Finding the Fourth Proportional to 7,871,191.70, 11,812,036.35 and 3,609,166.10

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Solution

The fourth proportional to 7,871,191.70, 11,812,036.35 and 3,609,166.10 is: 5,416,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871,191.70 : 11,812,036.35 = 3,609,166.10 : x
  2. Step 2: Convert to fraction form
    7,871,191.70/11,812,036.35 = 3,609,166.10/x
  3. Step 3: Cross multiply
    7,871,191.70x = 11,812,036.35 × 3,609,166.10
  4. Step 4: Simplify right side
    7,871,191.70x = 42,631,601,166,387.73
  5. Step 5: Solve for x
    x = 42,631,601,166,387.73/7,871,191.70
  6. Step 6: Final answer
    x = 5,416,155.87

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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.