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Finding the Fourth Proportional to 398,591,461.60, 595,974,004.80 and 295,279,331.20

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Solution

The fourth proportional to 398,591,461.60, 595,974,004.80 and 295,279,331.20 is: 441,501,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,591,461.60 : 595,974,004.80 = 295,279,331.20 : x
  2. Step 2: Convert to fraction form
    398,591,461.60/595,974,004.80 = 295,279,331.20/x
  3. Step 3: Cross multiply
    398,591,461.60x = 595,974,004.80 × 295,279,331.20
  4. Step 4: Simplify right side
    398,591,461.60x = 175,978,805,549,929,568
  5. Step 5: Solve for x
    x = 175,978,805,549,929,568/398,591,461.60
  6. Step 6: Final answer
    x = 441,501,694.10

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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.