Home / 12,120,431.06-18,180,667.25-9,706,934.41

Finding the Fourth Proportional to 12,120,431.06, 18,180,667.25 and 9,706,934.41

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Solution

The fourth proportional to 12,120,431.06, 18,180,667.25 and 9,706,934.41 is: 14,560,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,431.06 : 18,180,667.25 = 9,706,934.41 : x
  2. Step 2: Convert to fraction form
    12,120,431.06/18,180,667.25 = 9,706,934.41/x
  3. Step 3: Cross multiply
    12,120,431.06x = 18,180,667.25 × 9,706,934.41
  4. Step 4: Simplify right side
    12,120,431.06x = 176,478,544,386,347.06
  5. Step 5: Solve for x
    x = 176,478,544,386,347.06/12,120,431.06
  6. Step 6: Final answer
    x = 14,560,418.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.