Home / 265,719,147.20-398,578,720.80-74,242,923.20

Finding the Fourth Proportional to 265,719,147.20, 398,578,720.80 and 74,242,923.20

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Solution

The fourth proportional to 265,719,147.20, 398,578,720.80 and 74,242,923.20 is: 111,364,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,719,147.20 : 398,578,720.80 = 74,242,923.20 : x
  2. Step 2: Convert to fraction form
    265,719,147.20/398,578,720.80 = 74,242,923.20/x
  3. Step 3: Cross multiply
    265,719,147.20x = 398,578,720.80 × 74,242,923.20
  4. Step 4: Simplify right side
    265,719,147.20x = 29,591,649,357,508,644
  5. Step 5: Solve for x
    x = 29,591,649,357,508,644/265,719,147.20
  6. Step 6: Final answer
    x = 111,364,384.80

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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.