Home / 187,487,999.70-281,231,999.55-168,403,362.90

Finding the Fourth Proportional to 187,487,999.70, 281,231,999.55 and 168,403,362.90

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Solution

The fourth proportional to 187,487,999.70, 281,231,999.55 and 168,403,362.90 is: 252,605,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,487,999.70 : 281,231,999.55 = 168,403,362.90 : x
  2. Step 2: Convert to fraction form
    187,487,999.70/281,231,999.55 = 168,403,362.90/x
  3. Step 3: Cross multiply
    187,487,999.70x = 281,231,999.55 × 168,403,362.90
  4. Step 4: Simplify right side
    187,487,999.70x = 47,360,414,479,311,288
  5. Step 5: Solve for x
    x = 47,360,414,479,311,288/187,487,999.70
  6. Step 6: Final answer
    x = 252,605,044.35

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1.5x scale

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.