Home / 143,428,948.80-215,115,429.60-47,690,836.80

Finding the Fourth Proportional to 143,428,948.80, 215,115,429.60 and 47,690,836.80

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Solution

The fourth proportional to 143,428,948.80, 215,115,429.60 and 47,690,836.80 is: 71,526,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,428,948.80 : 215,115,429.60 = 47,690,836.80 : x
  2. Step 2: Convert to fraction form
    143,428,948.80/215,115,429.60 = 47,690,836.80/x
  3. Step 3: Cross multiply
    143,428,948.80x = 215,115,429.60 × 47,690,836.80
  4. Step 4: Simplify right side
    143,428,948.80x = 10,259,034,846,215,488
  5. Step 5: Solve for x
    x = 10,259,034,846,215,488/143,428,948.80
  6. Step 6: Final answer
    x = 71,526,947.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.