Home / 282,130,012.12-389,304,160.86-156,665,149.72

Finding the Fourth Proportional to 282,130,012.12, 389,304,160.86 and 156,665,149.72

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Solution

The fourth proportional to 282,130,012.12, 389,304,160.86 and 156,665,149.72 is: 216,178,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,130,012.12 : 389,304,160.86 = 156,665,149.72 : x
  2. Step 2: Convert to fraction form
    282,130,012.12/389,304,160.86 = 156,665,149.72/x
  3. Step 3: Cross multiply
    282,130,012.12x = 389,304,160.86 × 156,665,149.72
  4. Step 4: Simplify right side
    282,130,012.12x = 60,990,394,647,750,864
  5. Step 5: Solve for x
    x = 60,990,394,647,750,864/282,130,012.12
  6. Step 6: Final answer
    x = 216,178,329.24

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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.