Home / 908,330,278.76-1,253,495,591.31-490,642,568.16

Finding the Fourth Proportional to 908,330,278.76, 1,253,495,591.31 and 490,642,568.16

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Solution

The fourth proportional to 908,330,278.76, 1,253,495,591.31 and 490,642,568.16 is: 677,086,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,330,278.76 : 1,253,495,591.31 = 490,642,568.16 : x
  2. Step 2: Convert to fraction form
    908,330,278.76/1,253,495,591.31 = 490,642,568.16/x
  3. Step 3: Cross multiply
    908,330,278.76x = 1,253,495,591.31 × 490,642,568.16
  4. Step 4: Simplify right side
    908,330,278.76x = 615,018,296,094,727,552
  5. Step 5: Solve for x
    x = 615,018,296,094,727,552/908,330,278.76
  6. Step 6: Final answer
    x = 677,086,639.60

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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.