Home / 312,675,265.17-431,493,813.05-173,454,849.81

Finding the Fourth Proportional to 312,675,265.17, 431,493,813.05 and 173,454,849.81

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Solution

The fourth proportional to 312,675,265.17, 431,493,813.05 and 173,454,849.81 is: 239,368,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,675,265.17 : 431,493,813.05 = 173,454,849.81 : x
  2. Step 2: Convert to fraction form
    312,675,265.17/431,493,813.05 = 173,454,849.81/x
  3. Step 3: Cross multiply
    312,675,265.17x = 431,493,813.05 × 173,454,849.81
  4. Step 4: Simplify right side
    312,675,265.17x = 74,844,694,535,664,704
  5. Step 5: Solve for x
    x = 74,844,694,535,664,704/312,675,265.17
  6. Step 6: Final answer
    x = 239,368,772.89

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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.