Home / 18,665,682.40-28,003,245.90-5,202,510.40

Finding the Fourth Proportional to 18,665,682.40, 28,003,245.90 and 5,202,510.40

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Solution

The fourth proportional to 18,665,682.40, 28,003,245.90 and 5,202,510.40 is: 7,805,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,682.40 : 28,003,245.90 = 5,202,510.40 : x
  2. Step 2: Convert to fraction form
    18,665,682.40/28,003,245.90 = 5,202,510.40/x
  3. Step 3: Cross multiply
    18,665,682.40x = 28,003,245.90 × 5,202,510.40
  4. Step 4: Simplify right side
    18,665,682.40x = 145,687,178,028,507.38
  5. Step 5: Solve for x
    x = 145,687,178,028,507.38/18,665,682.40
  6. Step 6: Final answer
    x = 7,805,081.80

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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.