Home / 218,369,763.33-327,712,656.38-85,442,283.56

Finding the Fourth Proportional to 218,369,763.33, 327,712,656.38 and 85,442,283.56

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Solution

The fourth proportional to 218,369,763.33, 327,712,656.38 and 85,442,283.56 is: 128,225,250.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,369,763.33 : 327,712,656.38 = 85,442,283.56 : x
  2. Step 2: Convert to fraction form
    218,369,763.33/327,712,656.38 = 85,442,283.56/x
  3. Step 3: Cross multiply
    218,369,763.33x = 327,712,656.38 × 85,442,283.56
  4. Step 4: Simplify right side
    218,369,763.33x = 28,000,517,710,555,032
  5. Step 5: Solve for x
    x = 28,000,517,710,555,032/218,369,763.33
  6. Step 6: Final answer
    x = 128,225,250.99

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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.