Home / 13,438,381.28-18,544,432.01-7,933,529.34

Finding the Fourth Proportional to 13,438,381.28, 18,544,432.01 and 7,933,529.34

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Solution

The fourth proportional to 13,438,381.28, 18,544,432.01 and 7,933,529.34 is: 10,947,955.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,381.28 : 18,544,432.01 = 7,933,529.34 : x
  2. Step 2: Convert to fraction form
    13,438,381.28/18,544,432.01 = 7,933,529.34/x
  3. Step 3: Cross multiply
    13,438,381.28x = 18,544,432.01 × 7,933,529.34
  4. Step 4: Simplify right side
    13,438,381.28x = 147,122,795,405,302.53
  5. Step 5: Solve for x
    x = 147,122,795,405,302.53/13,438,381.28
  6. Step 6: Final answer
    x = 10,947,955.14

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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.