Home / 81,654,681.60-122,482,022.40-54,444,902.40

Finding the Fourth Proportional to 81,654,681.60, 122,482,022.40 and 54,444,902.40

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Solution

The fourth proportional to 81,654,681.60, 122,482,022.40 and 54,444,902.40 is: 81,667,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,654,681.60 : 122,482,022.40 = 54,444,902.40 : x
  2. Step 2: Convert to fraction form
    81,654,681.60/122,482,022.40 = 54,444,902.40/x
  3. Step 3: Cross multiply
    81,654,681.60x = 122,482,022.40 × 54,444,902.40
  4. Step 4: Simplify right side
    81,654,681.60x = 6,668,521,755,322,614
  5. Step 5: Solve for x
    x = 6,668,521,755,322,614/81,654,681.60
  6. Step 6: Final answer
    x = 81,667,353.60

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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.