Home / 881,900,049.40-1,217,012,410.25-485,414,562.04

Finding the Fourth Proportional to 881,900,049.40, 1,217,012,410.25 and 485,414,562.04

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Solution

The fourth proportional to 881,900,049.40, 1,217,012,410.25 and 485,414,562.04 is: 669,866,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,900,049.40 : 1,217,012,410.25 = 485,414,562.04 : x
  2. Step 2: Convert to fraction form
    881,900,049.40/1,217,012,410.25 = 485,414,562.04/x
  3. Step 3: Cross multiply
    881,900,049.40x = 1,217,012,410.25 × 485,414,562.04
  4. Step 4: Simplify right side
    881,900,049.40x = 590,755,546,116,321,408
  5. Step 5: Solve for x
    x = 590,755,546,116,321,408/881,900,049.40
  6. Step 6: Final answer
    x = 669,866,779.71

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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.