Home / 13,655,381.76-18,844,669.44-7,543,445.76

Finding the Fourth Proportional to 13,655,381.76, 18,844,669.44 and 7,543,445.76

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Solution

The fourth proportional to 13,655,381.76, 18,844,669.44 and 7,543,445.76 is: 10,410,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655,381.76 : 18,844,669.44 = 7,543,445.76 : x
  2. Step 2: Convert to fraction form
    13,655,381.76/18,844,669.44 = 7,543,445.76/x
  3. Step 3: Cross multiply
    13,655,381.76x = 18,844,669.44 × 7,543,445.76
  4. Step 4: Simplify right side
    13,655,381.76x = 142,153,741,785,769.59
  5. Step 5: Solve for x
    x = 142,153,741,785,769.59/13,655,381.76
  6. Step 6: Final answer
    x = 10,410,089.17

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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.