Home / 122,474,857.40-183,712,286.10-81,660,188.60

Finding the Fourth Proportional to 122,474,857.40, 183,712,286.10 and 81,660,188.60

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Solution

The fourth proportional to 122,474,857.40, 183,712,286.10 and 81,660,188.60 is: 122,490,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,474,857.40 : 183,712,286.10 = 81,660,188.60 : x
  2. Step 2: Convert to fraction form
    122,474,857.40/183,712,286.10 = 81,660,188.60/x
  3. Step 3: Cross multiply
    122,474,857.40x = 183,712,286.10 × 81,660,188.60
  4. Step 4: Simplify right side
    122,474,857.40x = 15,001,979,931,063,156
  5. Step 5: Solve for x
    x = 15,001,979,931,063,156/122,474,857.40
  6. Step 6: Final answer
    x = 122,490,282.90

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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.