Home / 13,306,871.20-18,363,202.32-7,876,112.80

Finding the Fourth Proportional to 13,306,871.20, 18,363,202.32 and 7,876,112.80

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Solution

The fourth proportional to 13,306,871.20, 18,363,202.32 and 7,876,112.80 is: 10,868,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,871.20 : 18,363,202.32 = 7,876,112.80 : x
  2. Step 2: Convert to fraction form
    13,306,871.20/18,363,202.32 = 7,876,112.80/x
  3. Step 3: Cross multiply
    13,306,871.20x = 18,363,202.32 × 7,876,112.80
  4. Step 4: Simplify right side
    13,306,871.20x = 144,630,652,841,541.69
  5. Step 5: Solve for x
    x = 144,630,652,841,541.69/13,306,871.20
  6. Step 6: Final answer
    x = 10,868,869.97

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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.