Home / 28,043,947.40-42,065,921.10-8,876,204.60

Finding the Fourth Proportional to 28,043,947.40, 42,065,921.10 and 8,876,204.60

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Solution

The fourth proportional to 28,043,947.40, 42,065,921.10 and 8,876,204.60 is: 13,314,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043,947.40 : 42,065,921.10 = 8,876,204.60 : x
  2. Step 2: Convert to fraction form
    28,043,947.40/42,065,921.10 = 8,876,204.60/x
  3. Step 3: Cross multiply
    28,043,947.40x = 42,065,921.10 × 8,876,204.60
  4. Step 4: Simplify right side
    28,043,947.40x = 373,385,722,371,057.06
  5. Step 5: Solve for x
    x = 373,385,722,371,057.06/28,043,947.40
  6. Step 6: Final answer
    x = 13,314,306.90

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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.