Home / 84,016,486.40-125,772,787.20-49,920,281.60

Finding the Fourth Proportional to 84,016,486.40, 125,772,787.20 and 49,920,281.60

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Solution

The fourth proportional to 84,016,486.40, 125,772,787.20 and 49,920,281.60 is: 74,730,725.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,016,486.40 : 125,772,787.20 = 49,920,281.60 : x
  2. Step 2: Convert to fraction form
    84,016,486.40/125,772,787.20 = 49,920,281.60/x
  3. Step 3: Cross multiply
    84,016,486.40x = 125,772,787.20 × 49,920,281.60
  4. Step 4: Simplify right side
    84,016,486.40x = 6,278,612,954,640,876
  5. Step 5: Solve for x
    x = 6,278,612,954,640,876/84,016,486.40
  6. Step 6: Final answer
    x = 74,730,725.17

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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.