Home / 155,990,319.76-215,264,004.24-86,374,202.32

Finding the Fourth Proportional to 155,990,319.76, 215,264,004.24 and 86,374,202.32

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Solution

The fourth proportional to 155,990,319.76, 215,264,004.24 and 86,374,202.32 is: 119,194,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,990,319.76 : 215,264,004.24 = 86,374,202.32 : x
  2. Step 2: Convert to fraction form
    155,990,319.76/215,264,004.24 = 86,374,202.32/x
  3. Step 3: Cross multiply
    155,990,319.76x = 215,264,004.24 × 86,374,202.32
  4. Step 4: Simplify right side
    155,990,319.76x = 18,593,256,654,439,096
  5. Step 5: Solve for x
    x = 18,593,256,654,439,096/155,990,319.76
  6. Step 6: Final answer
    x = 119,194,939.04

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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.