Home / 13,667,335.22-18,865,672.50-7,868,428.16

Finding the Fourth Proportional to 13,667,335.22, 18,865,672.50 and 7,868,428.16

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Solution

The fourth proportional to 13,667,335.22, 18,865,672.50 and 7,868,428.16 is: 10,861,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,335.22 : 18,865,672.50 = 7,868,428.16 : x
  2. Step 2: Convert to fraction form
    13,667,335.22/18,865,672.50 = 7,868,428.16/x
  3. Step 3: Cross multiply
    13,667,335.22x = 18,865,672.50 × 7,868,428.16
  4. Step 4: Simplify right side
    13,667,335.22x = 148,443,188,756,337.59
  5. Step 5: Solve for x
    x = 148,443,188,756,337.59/13,667,335.22
  6. Step 6: Final answer
    x = 10,861,165.43

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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.