Home / 187,629,100.80-281,359,670.40-85,340,486.40

Finding the Fourth Proportional to 187,629,100.80, 281,359,670.40 and 85,340,486.40

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Solution

The fourth proportional to 187,629,100.80, 281,359,670.40 and 85,340,486.40 is: 127,972,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,629,100.80 : 281,359,670.40 = 85,340,486.40 : x
  2. Step 2: Convert to fraction form
    187,629,100.80/281,359,670.40 = 85,340,486.40/x
  3. Step 3: Cross multiply
    187,629,100.80x = 281,359,670.40 × 85,340,486.40
  4. Step 4: Simplify right side
    187,629,100.80x = 24,011,371,125,279,684
  5. Step 5: Solve for x
    x = 24,011,371,125,279,684/187,629,100.80
  6. Step 6: Final answer
    x = 127,972,532.10

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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.