Home / 137,914,538.40-206,871,807.60-126,269,200.80

Finding the Fourth Proportional to 137,914,538.40, 206,871,807.60 and 126,269,200.80

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Solution

The fourth proportional to 137,914,538.40, 206,871,807.60 and 126,269,200.80 is: 189,403,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,914,538.40 : 206,871,807.60 = 126,269,200.80 : x
  2. Step 2: Convert to fraction form
    137,914,538.40/206,871,807.60 = 126,269,200.80/x
  3. Step 3: Cross multiply
    137,914,538.40x = 206,871,807.60 × 126,269,200.80
  4. Step 4: Simplify right side
    137,914,538.40x = 26,121,537,813,703,364
  5. Step 5: Solve for x
    x = 26,121,537,813,703,364/137,914,538.40
  6. Step 6: Final answer
    x = 189,403,801.20

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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.