Home / 13,667,334.22-18,865,671.12-7,868,427.16

Finding the Fourth Proportional to 13,667,334.22, 18,865,671.12 and 7,868,427.16

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Solution

The fourth proportional to 13,667,334.22, 18,865,671.12 and 7,868,427.16 is: 10,861,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,334.22 : 18,865,671.12 = 7,868,427.16 : x
  2. Step 2: Convert to fraction form
    13,667,334.22/18,865,671.12 = 7,868,427.16/x
  3. Step 3: Cross multiply
    13,667,334.22x = 18,865,671.12 × 7,868,427.16
  4. Step 4: Simplify right side
    13,667,334.22x = 148,443,159,032,235.62
  5. Step 5: Solve for x
    x = 148,443,159,032,235.62/13,667,334.22
  6. Step 6: Final answer
    x = 10,861,164.05

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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.