Home / 908,344,273.11-1,253,515,646.06-490,656,742.94

Finding the Fourth Proportional to 908,344,273.11, 1,253,515,646.06 and 490,656,742.94

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Solution

The fourth proportional to 908,344,273.11, 1,253,515,646.06 and 490,656,742.94 is: 677,106,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,273.11 : 1,253,515,646.06 = 490,656,742.94 : x
  2. Step 2: Convert to fraction form
    908,344,273.11/1,253,515,646.06 = 490,656,742.94/x
  3. Step 3: Cross multiply
    908,344,273.11x = 1,253,515,646.06 × 490,656,742.94
  4. Step 4: Simplify right side
    908,344,273.11x = 615,045,904,111,408,640
  5. Step 5: Solve for x
    x = 615,045,904,111,408,640/908,344,273.11
  6. Step 6: Final answer
    x = 677,106,601.89

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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.