Home / 908,344,285.55-1,253,515,663.22-490,656,755.37

Finding the Fourth Proportional to 908,344,285.55, 1,253,515,663.22 and 490,656,755.37

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Solution

The fourth proportional to 908,344,285.55, 1,253,515,663.22 and 490,656,755.37 is: 677,106,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,285.55 : 1,253,515,663.22 = 490,656,755.37 : x
  2. Step 2: Convert to fraction form
    908,344,285.55/1,253,515,663.22 = 490,656,755.37/x
  3. Step 3: Cross multiply
    908,344,285.55x = 1,253,515,663.22 × 490,656,755.37
  4. Step 4: Simplify right side
    908,344,285.55x = 615,045,928,120,998,912
  5. Step 5: Solve for x
    x = 615,045,928,120,998,912/908,344,285.55
  6. Step 6: Final answer
    x = 677,106,619.05

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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.