Home / 155,847,516.27-215,069,824.40-86,235,831.15

Finding the Fourth Proportional to 155,847,516.27, 215,069,824.40 and 86,235,831.15

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Solution

The fourth proportional to 155,847,516.27, 215,069,824.40 and 86,235,831.15 is: 119,005,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847,516.27 : 215,069,824.40 = 86,235,831.15 : x
  2. Step 2: Convert to fraction form
    155,847,516.27/215,069,824.40 = 86,235,831.15/x
  3. Step 3: Cross multiply
    155,847,516.27x = 215,069,824.40 × 86,235,831.15
  4. Step 4: Simplify right side
    155,847,516.27x = 18,546,725,061,987,372
  5. Step 5: Solve for x
    x = 18,546,725,061,987,372/155,847,516.27
  6. Step 6: Final answer
    x = 119,005,586.40

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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.