Home / 103,815,280.80-155,722,921.20-103,815,280.80

Finding the Fourth Proportional to 103,815,280.80, 155,722,921.20 and 103,815,280.80

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Solution

The fourth proportional to 103,815,280.80, 155,722,921.20 and 103,815,280.80 is: 155,722,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,815,280.80 : 155,722,921.20 = 103,815,280.80 : x
  2. Step 2: Convert to fraction form
    103,815,280.80/155,722,921.20 = 103,815,280.80/x
  3. Step 3: Cross multiply
    103,815,280.80x = 155,722,921.20 × 103,815,280.80
  4. Step 4: Simplify right side
    103,815,280.80x = 16,166,418,791,374,272
  5. Step 5: Solve for x
    x = 16,166,418,791,374,272/103,815,280.80
  6. Step 6: Final answer
    x = 155,722,921.20

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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.