Home / 39,138,569.60-58,707,854.40-20,998,716.80

Finding the Fourth Proportional to 39,138,569.60, 58,707,854.40 and 20,998,716.80

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Solution

The fourth proportional to 39,138,569.60, 58,707,854.40 and 20,998,716.80 is: 31,498,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138,569.60 : 58,707,854.40 = 20,998,716.80 : x
  2. Step 2: Convert to fraction form
    39,138,569.60/58,707,854.40 = 20,998,716.80/x
  3. Step 3: Cross multiply
    39,138,569.60x = 58,707,854.40 × 20,998,716.80
  4. Step 4: Simplify right side
    39,138,569.60x = 1,232,789,608,481,234
  5. Step 5: Solve for x
    x = 1,232,789,608,481,234/39,138,569.60
  6. Step 6: Final answer
    x = 31,498,075.20

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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.