Home / 155,822,524.75-215,016,508.96-86,198,475.79

Finding the Fourth Proportional to 155,822,524.75, 215,016,508.96 and 86,198,475.79

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Solution

The fourth proportional to 155,822,524.75, 215,016,508.96 and 86,198,475.79 is: 118,943,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,822,524.75 : 215,016,508.96 = 86,198,475.79 : x
  2. Step 2: Convert to fraction form
    155,822,524.75/215,016,508.96 = 86,198,475.79/x
  3. Step 3: Cross multiply
    155,822,524.75x = 215,016,508.96 × 86,198,475.79
  4. Step 4: Simplify right side
    155,822,524.75x = 18,534,095,342,038,880
  5. Step 5: Solve for x
    x = 18,534,095,342,038,880/155,822,524.75
  6. Step 6: Final answer
    x = 118,943,621.10

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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.