Home / 155,402,431.82-214,454,040.60-85,786,318.02

Finding the Fourth Proportional to 155,402,431.82, 214,454,040.60 and 85,786,318.02

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Solution

The fourth proportional to 155,402,431.82, 214,454,040.60 and 85,786,318.02 is: 118,384,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,402,431.82 : 214,454,040.60 = 85,786,318.02 : x
  2. Step 2: Convert to fraction form
    155,402,431.82/214,454,040.60 = 85,786,318.02/x
  3. Step 3: Cross multiply
    155,402,431.82x = 214,454,040.60 × 85,786,318.02
  4. Step 4: Simplify right side
    155,402,431.82x = 18,397,222,527,585,592
  5. Step 5: Solve for x
    x = 18,397,222,527,585,592/155,402,431.82
  6. Step 6: Final answer
    x = 118,384,392.78

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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.