Home / 281,753,156.61-388,819,813.55-156,305,355.78

Finding the Fourth Proportional to 281,753,156.61, 388,819,813.55 and 156,305,355.78

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Solution

The fourth proportional to 281,753,156.61, 388,819,813.55 and 156,305,355.78 is: 215,701,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,753,156.61 : 388,819,813.55 = 156,305,355.78 : x
  2. Step 2: Convert to fraction form
    281,753,156.61/388,819,813.55 = 156,305,355.78/x
  3. Step 3: Cross multiply
    281,753,156.61x = 388,819,813.55 × 156,305,355.78
  4. Step 4: Simplify right side
    281,753,156.61x = 60,774,619,290,464,488
  5. Step 5: Solve for x
    x = 60,774,619,290,464,488/281,753,156.61
  6. Step 6: Final answer
    x = 215,701,644.74

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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.