Home / 12,544,774.22-18,814,916.61-7,982,270.21

Finding the Fourth Proportional to 12,544,774.22, 18,814,916.61 and 7,982,270.21

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Solution

The fourth proportional to 12,544,774.22, 18,814,916.61 and 7,982,270.21 is: 11,971,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544,774.22 : 18,814,916.61 = 7,982,270.21 : x
  2. Step 2: Convert to fraction form
    12,544,774.22/18,814,916.61 = 7,982,270.21/x
  3. Step 3: Cross multiply
    12,544,774.22x = 18,814,916.61 × 7,982,270.21
  4. Step 4: Simplify right side
    12,544,774.22x = 150,185,748,265,562.59
  5. Step 5: Solve for x
    x = 150,185,748,265,562.59/12,544,774.22
  6. Step 6: Final answer
    x = 11,971,976.99

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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.