Home / 28,515,376.80-42,773,065.20-25,380,093.60

Finding the Fourth Proportional to 28,515,376.80, 42,773,065.20 and 25,380,093.60

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Solution

The fourth proportional to 28,515,376.80, 42,773,065.20 and 25,380,093.60 is: 38,070,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515,376.80 : 42,773,065.20 = 25,380,093.60 : x
  2. Step 2: Convert to fraction form
    28,515,376.80/42,773,065.20 = 25,380,093.60/x
  3. Step 3: Cross multiply
    28,515,376.80x = 42,773,065.20 × 25,380,093.60
  4. Step 4: Simplify right side
    28,515,376.80x = 1,085,584,398,334,902.88
  5. Step 5: Solve for x
    x = 1,085,584,398,334,902.88/28,515,376.80
  6. Step 6: Final answer
    x = 38,070,140.40

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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.