Home / 13,052,107.28-18,013,568.78-7,895,505.76

Finding the Fourth Proportional to 13,052,107.28, 18,013,568.78 and 7,895,505.76

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Solution

The fourth proportional to 13,052,107.28, 18,013,568.78 and 7,895,505.76 is: 10,896,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052,107.28 : 18,013,568.78 = 7,895,505.76 : x
  2. Step 2: Convert to fraction form
    13,052,107.28/18,013,568.78 = 7,895,505.76/x
  3. Step 3: Cross multiply
    13,052,107.28x = 18,013,568.78 × 7,895,505.76
  4. Step 4: Simplify right side
    13,052,107.28x = 142,226,236,060,646.19
  5. Step 5: Solve for x
    x = 142,226,236,060,646.19/13,052,107.28
  6. Step 6: Final answer
    x = 10,896,802.56

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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.