Home / 218,899,228.80-328,132,267.20-103,681,257.60

Finding the Fourth Proportional to 218,899,228.80, 328,132,267.20 and 103,681,257.60

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Solution

The fourth proportional to 218,899,228.80, 328,132,267.20 and 103,681,257.60 is: 155,419,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,899,228.80 : 328,132,267.20 = 103,681,257.60 : x
  2. Step 2: Convert to fraction form
    218,899,228.80/328,132,267.20 = 103,681,257.60/x
  3. Step 3: Cross multiply
    218,899,228.80x = 328,132,267.20 × 103,681,257.60
  4. Step 4: Simplify right side
    218,899,228.80x = 34,021,166,122,435,228
  5. Step 5: Solve for x
    x = 34,021,166,122,435,228/218,899,228.80
  6. Step 6: Final answer
    x = 155,419,305.54

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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.