Home / 82,084,974.80-123,046,246.20-38,878,235.60

Finding the Fourth Proportional to 82,084,974.80, 123,046,246.20 and 38,878,235.60

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Solution

The fourth proportional to 82,084,974.80, 123,046,246.20 and 38,878,235.60 is: 58,278,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,084,974.80 : 123,046,246.20 = 38,878,235.60 : x
  2. Step 2: Convert to fraction form
    82,084,974.80/123,046,246.20 = 38,878,235.60/x
  3. Step 3: Cross multiply
    82,084,974.80x = 123,046,246.20 × 38,878,235.60
  4. Step 4: Simplify right side
    82,084,974.80x = 4,783,820,949,459,205
  5. Step 5: Solve for x
    x = 4,783,820,949,459,205/82,084,974.80
  6. Step 6: Final answer
    x = 58,278,886.74

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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.