Home / 13,306,872.20-18,363,203.70-7,876,113.80

Finding the Fourth Proportional to 13,306,872.20, 18,363,203.70 and 7,876,113.80

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Solution

The fourth proportional to 13,306,872.20, 18,363,203.70 and 7,876,113.80 is: 10,868,871.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,872.20 : 18,363,203.70 = 7,876,113.80 : x
  2. Step 2: Convert to fraction form
    13,306,872.20/18,363,203.70 = 7,876,113.80/x
  3. Step 3: Cross multiply
    13,306,872.20x = 18,363,203.70 × 7,876,113.80
  4. Step 4: Simplify right side
    13,306,872.20x = 144,630,682,073,781.06
  5. Step 5: Solve for x
    x = 144,630,682,073,781.06/13,306,872.20
  6. Step 6: Final answer
    x = 10,868,871.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.