Home / 99,660,020.10-149,532,020.55-54,254,400.90

Finding the Fourth Proportional to 99,660,020.10, 149,532,020.55 and 54,254,400.90

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Solution

The fourth proportional to 99,660,020.10, 149,532,020.55 and 54,254,400.90 is: 81,404,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660,020.10 : 149,532,020.55 = 54,254,400.90 : x
  2. Step 2: Convert to fraction form
    99,660,020.10/149,532,020.55 = 54,254,400.90/x
  3. Step 3: Cross multiply
    99,660,020.10x = 149,532,020.55 × 54,254,400.90
  4. Step 4: Simplify right side
    99,660,020.10x = 8,112,770,190,306,739
  5. Step 5: Solve for x
    x = 8,112,770,190,306,739/99,660,020.10
  6. Step 6: Final answer
    x = 81,404,460.71

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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.