Home / 12,035,053-18,061,198.78-5,123,378.16

Finding the Fourth Proportional to 12,035,053, 18,061,198.78 and 5,123,378.16

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Solution

The fourth proportional to 12,035,053, 18,061,198.78 and 5,123,378.16 is: 7,688,736.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,035,053 : 18,061,198.78 = 5,123,378.16 : x
  2. Step 2: Convert to fraction form
    12,035,053/18,061,198.78 = 5,123,378.16/x
  3. Step 3: Cross multiply
    12,035,053x = 18,061,198.78 × 5,123,378.16
  4. Step 4: Simplify right side
    12,035,053x = 92,534,351,372,870.66
  5. Step 5: Solve for x
    x = 92,534,351,372,870.66/12,035,053
  6. Step 6: Final answer
    x = 7,688,736.51

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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.