Home / 7,777,366.20-11,666,049.30-5,385,881.70

Finding the Fourth Proportional to 7,777,366.20, 11,666,049.30 and 5,385,881.70

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Solution

The fourth proportional to 7,777,366.20, 11,666,049.30 and 5,385,881.70 is: 8,078,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,366.20 : 11,666,049.30 = 5,385,881.70 : x
  2. Step 2: Convert to fraction form
    7,777,366.20/11,666,049.30 = 5,385,881.70/x
  3. Step 3: Cross multiply
    7,777,366.20x = 11,666,049.30 × 5,385,881.70
  4. Step 4: Simplify right side
    7,777,366.20x = 62,831,961,436,167.81
  5. Step 5: Solve for x
    x = 62,831,961,436,167.81/7,777,366.20
  6. Step 6: Final answer
    x = 8,078,822.55

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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.