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Finding the Fourth Proportional to 138,438,150.40, 207,657,225.60 and 138,438,150.40

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Solution

The fourth proportional to 138,438,150.40, 207,657,225.60 and 138,438,150.40 is: 207,657,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,438,150.40 : 207,657,225.60 = 138,438,150.40 : x
  2. Step 2: Convert to fraction form
    138,438,150.40/207,657,225.60 = 138,438,150.40/x
  3. Step 3: Cross multiply
    138,438,150.40x = 207,657,225.60 × 138,438,150.40
  4. Step 4: Simplify right side
    138,438,150.40x = 28,747,682,229,259,532
  5. Step 5: Solve for x
    x = 28,747,682,229,259,532/138,438,150.40
  6. Step 6: Final answer
    x = 207,657,225.60

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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.