Home / 431,476,915.28-647,144,514.08-185,767,399.60

Finding the Fourth Proportional to 431,476,915.28, 647,144,514.08 and 185,767,399.60

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Solution

The fourth proportional to 431,476,915.28, 647,144,514.08 and 185,767,399.60 is: 278,620,591.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,476,915.28 : 647,144,514.08 = 185,767,399.60 : x
  2. Step 2: Convert to fraction form
    431,476,915.28/647,144,514.08 = 185,767,399.60/x
  3. Step 3: Cross multiply
    431,476,915.28x = 647,144,514.08 × 185,767,399.60
  4. Step 4: Simplify right side
    431,476,915.28x = 120,218,353,546,047,184
  5. Step 5: Solve for x
    x = 120,218,353,546,047,184/431,476,915.28
  6. Step 6: Final answer
    x = 278,620,591.95

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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.