Home / 138,016,187.20-207,024,280.80-135,328,801.60

Finding the Fourth Proportional to 138,016,187.20, 207,024,280.80 and 135,328,801.60

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Solution

The fourth proportional to 138,016,187.20, 207,024,280.80 and 135,328,801.60 is: 202,993,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,016,187.20 : 207,024,280.80 = 135,328,801.60 : x
  2. Step 2: Convert to fraction form
    138,016,187.20/207,024,280.80 = 135,328,801.60/x
  3. Step 3: Cross multiply
    138,016,187.20x = 207,024,280.80 × 135,328,801.60
  4. Step 4: Simplify right side
    138,016,187.20x = 28,016,347,822,765,888
  5. Step 5: Solve for x
    x = 28,016,347,822,765,888/138,016,187.20
  6. Step 6: Final answer
    x = 202,993,202.40

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1.5x scale

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.