Home / 908,305,977.38-1,253,462,729.06-490,618,261.82

Finding the Fourth Proportional to 908,305,977.38, 1,253,462,729.06 and 490,618,261.82

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Solution

The fourth proportional to 908,305,977.38, 1,253,462,729.06 and 490,618,261.82 is: 677,053,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,305,977.38 : 1,253,462,729.06 = 490,618,261.82 : x
  2. Step 2: Convert to fraction form
    908,305,977.38/1,253,462,729.06 = 490,618,261.82/x
  3. Step 3: Cross multiply
    908,305,977.38x = 1,253,462,729.06 × 490,618,261.82
  4. Step 4: Simplify right side
    908,305,977.38x = 614,971,705,378,850,432
  5. Step 5: Solve for x
    x = 614,971,705,378,850,432/908,305,977.38
  6. Step 6: Final answer
    x = 677,053,460.72

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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.