Home / 908,344,295.82-1,253,515,677.39-490,656,765.65

Finding the Fourth Proportional to 908,344,295.82, 1,253,515,677.39 and 490,656,765.65

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Solution

The fourth proportional to 908,344,295.82, 1,253,515,677.39 and 490,656,765.65 is: 677,106,633.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,295.82 : 1,253,515,677.39 = 490,656,765.65 : x
  2. Step 2: Convert to fraction form
    908,344,295.82/1,253,515,677.39 = 490,656,765.65/x
  3. Step 3: Cross multiply
    908,344,295.82x = 1,253,515,677.39 × 490,656,765.65
  4. Step 4: Simplify right side
    908,344,295.82x = 615,045,947,953,478,656
  5. Step 5: Solve for x
    x = 615,045,947,953,478,656/908,344,295.82
  6. Step 6: Final answer
    x = 677,106,633.23

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1.5x scale

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.