Home / 28,086,355.80-42,129,533.70-25,398,970.20

Finding the Fourth Proportional to 28,086,355.80, 42,129,533.70 and 25,398,970.20

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Solution

The fourth proportional to 28,086,355.80, 42,129,533.70 and 25,398,970.20 is: 38,098,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,355.80 : 42,129,533.70 = 25,398,970.20 : x
  2. Step 2: Convert to fraction form
    28,086,355.80/42,129,533.70 = 25,398,970.20/x
  3. Step 3: Cross multiply
    28,086,355.80x = 42,129,533.70 × 25,398,970.20
  4. Step 4: Simplify right side
    28,086,355.80x = 1,070,046,770,986,195.75
  5. Step 5: Solve for x
    x = 1,070,046,770,986,195.75/28,086,355.80
  6. Step 6: Final answer
    x = 38,098,455.30

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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.