Home / 15,690,667.68-21,632,319.86-12,889,267.96

Finding the Fourth Proportional to 15,690,667.68, 21,632,319.86 and 12,889,267.96

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Solution

The fourth proportional to 15,690,667.68, 21,632,319.86 and 12,889,267.96 is: 17,770,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690,667.68 : 21,632,319.86 = 12,889,267.96 : x
  2. Step 2: Convert to fraction form
    15,690,667.68/21,632,319.86 = 12,889,267.96/x
  3. Step 3: Cross multiply
    15,690,667.68x = 21,632,319.86 × 12,889,267.96
  4. Step 4: Simplify right side
    15,690,667.68x = 278,824,767,207,523.38
  5. Step 5: Solve for x
    x = 278,824,767,207,523.38/15,690,667.68
  6. Step 6: Final answer
    x = 17,770,102.14

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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.