Home / 398,966,384.22-598,449,540.81-202,199,147.10

Finding the Fourth Proportional to 398,966,384.22, 598,449,540.81 and 202,199,147.10

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Solution

The fourth proportional to 398,966,384.22, 598,449,540.81 and 202,199,147.10 is: 303,298,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,966,384.22 : 598,449,540.81 = 202,199,147.10 : x
  2. Step 2: Convert to fraction form
    398,966,384.22/598,449,540.81 = 202,199,147.10/x
  3. Step 3: Cross multiply
    398,966,384.22x = 598,449,540.81 × 202,199,147.10
  4. Step 4: Simplify right side
    398,966,384.22x = 121,005,986,734,168,624
  5. Step 5: Solve for x
    x = 121,005,986,734,168,624/398,966,384.22
  6. Step 6: Final answer
    x = 303,298,702.65

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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.