Home / 908,344,298.12-1,253,515,680.56-490,656,767.95

Finding the Fourth Proportional to 908,344,298.12, 1,253,515,680.56 and 490,656,767.95

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Solution

The fourth proportional to 908,344,298.12, 1,253,515,680.56 and 490,656,767.95 is: 677,106,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,298.12 : 1,253,515,680.56 = 490,656,767.95 : x
  2. Step 2: Convert to fraction form
    908,344,298.12/1,253,515,680.56 = 490,656,767.95/x
  3. Step 3: Cross multiply
    908,344,298.12x = 1,253,515,680.56 × 490,656,767.95
  4. Step 4: Simplify right side
    908,344,298.12x = 615,045,952,389,493,376
  5. Step 5: Solve for x
    x = 615,045,952,389,493,376/908,344,298.12
  6. Step 6: Final answer
    x = 677,106,636.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.