Home / 151,778,972.95-209,455,651.12-82,164,353.83

Finding the Fourth Proportional to 151,778,972.95, 209,455,651.12 and 82,164,353.83

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Solution

The fourth proportional to 151,778,972.95, 209,455,651.12 and 82,164,353.83 is: 113,387,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,778,972.95 : 209,455,651.12 = 82,164,353.83 : x
  2. Step 2: Convert to fraction form
    151,778,972.95/209,455,651.12 = 82,164,353.83/x
  3. Step 3: Cross multiply
    151,778,972.95x = 209,455,651.12 × 82,164,353.83
  4. Step 4: Simplify right side
    151,778,972.95x = 17,209,788,231,121,064
  5. Step 5: Solve for x
    x = 17,209,788,231,121,064/151,778,972.95
  6. Step 6: Final answer
    x = 113,387,170.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.