Home / 18,120,667.12-25,006,524.72-9,971,905.12

Finding the Fourth Proportional to 18,120,667.12, 25,006,524.72 and 9,971,905.12

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Solution

The fourth proportional to 18,120,667.12, 25,006,524.72 and 9,971,905.12 is: 13,761,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,667.12 : 25,006,524.72 = 9,971,905.12 : x
  2. Step 2: Convert to fraction form
    18,120,667.12/25,006,524.72 = 9,971,905.12/x
  3. Step 3: Cross multiply
    18,120,667.12x = 25,006,524.72 × 9,971,905.12
  4. Step 4: Simplify right side
    18,120,667.12x = 249,362,691,888,774.53
  5. Step 5: Solve for x
    x = 249,362,691,888,774.53/18,120,667.12
  6. Step 6: Final answer
    x = 13,761,231.32

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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.