Home / 13,667,340.22-18,865,679.40-7,868,433.16

Finding the Fourth Proportional to 13,667,340.22, 18,865,679.40 and 7,868,433.16

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Solution

The fourth proportional to 13,667,340.22, 18,865,679.40 and 7,868,433.16 is: 10,861,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,340.22 : 18,865,679.40 = 7,868,433.16 : x
  2. Step 2: Convert to fraction form
    13,667,340.22/18,865,679.40 = 7,868,433.16/x
  3. Step 3: Cross multiply
    13,667,340.22x = 18,865,679.40 × 7,868,433.16
  4. Step 4: Simplify right side
    13,667,340.22x = 148,443,337,376,888.91
  5. Step 5: Solve for x
    x = 148,443,337,376,888.91/13,667,340.22
  6. Step 6: Final answer
    x = 10,861,172.33

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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.