Home / 908,078,414.85-1,253,148,201.02-490,390,663.25

Finding the Fourth Proportional to 908,078,414.85, 1,253,148,201.02 and 490,390,663.25

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Solution

The fourth proportional to 908,078,414.85, 1,253,148,201.02 and 490,390,663.25 is: 676,739,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,078,414.85 : 1,253,148,201.02 = 490,390,663.25 : x
  2. Step 2: Convert to fraction form
    908,078,414.85/1,253,148,201.02 = 490,390,663.25/x
  3. Step 3: Cross multiply
    908,078,414.85x = 1,253,148,201.02 × 490,390,663.25
  4. Step 4: Simplify right side
    908,078,414.85x = 614,532,177,453,100,928
  5. Step 5: Solve for x
    x = 614,532,177,453,100,928/908,078,414.85
  6. Step 6: Final answer
    x = 676,739,109.09

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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.