Home / 137,791,671.20-206,687,506.80-91,875,168.80

Finding the Fourth Proportional to 137,791,671.20, 206,687,506.80 and 91,875,168.80

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Solution

The fourth proportional to 137,791,671.20, 206,687,506.80 and 91,875,168.80 is: 137,812,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,791,671.20 : 206,687,506.80 = 91,875,168.80 : x
  2. Step 2: Convert to fraction form
    137,791,671.20/206,687,506.80 = 91,875,168.80/x
  3. Step 3: Cross multiply
    137,791,671.20x = 206,687,506.80 × 91,875,168.80
  4. Step 4: Simplify right side
    137,791,671.20x = 18,989,449,576,101,148
  5. Step 5: Solve for x
    x = 18,989,449,576,101,148/137,791,671.20
  6. Step 6: Final answer
    x = 137,812,753.20

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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.