Home / 82,084,972.80-123,046,243.20-38,878,233.60

Finding the Fourth Proportional to 82,084,972.80, 123,046,243.20 and 38,878,233.60

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Solution

The fourth proportional to 82,084,972.80, 123,046,243.20 and 38,878,233.60 is: 58,278,883.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,084,972.80 : 123,046,243.20 = 38,878,233.60 : x
  2. Step 2: Convert to fraction form
    82,084,972.80/123,046,243.20 = 38,878,233.60/x
  3. Step 3: Cross multiply
    82,084,972.80x = 123,046,243.20 × 38,878,233.60
  4. Step 4: Simplify right side
    82,084,972.80x = 4,783,820,586,732,012
  5. Step 5: Solve for x
    x = 4,783,820,586,732,012/82,084,972.80
  6. Step 6: Final answer
    x = 58,278,883.74

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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.