Home / 398,966,382.72-598,449,538.56-202,199,145.60

Finding the Fourth Proportional to 398,966,382.72, 598,449,538.56 and 202,199,145.60

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Solution

The fourth proportional to 398,966,382.72, 598,449,538.56 and 202,199,145.60 is: 303,298,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,966,382.72 : 598,449,538.56 = 202,199,145.60 : x
  2. Step 2: Convert to fraction form
    398,966,382.72/598,449,538.56 = 202,199,145.60/x
  3. Step 3: Cross multiply
    398,966,382.72x = 598,449,538.56 × 202,199,145.60
  4. Step 4: Simplify right side
    398,966,382.72x = 121,005,985,381,546,240
  5. Step 5: Solve for x
    x = 121,005,985,381,546,240/398,966,382.72
  6. Step 6: Final answer
    x = 303,298,700.40

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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.