Home / 12,439,026-18,616,404.60-7,649,753.04

Finding the Fourth Proportional to 12,439,026, 18,616,404.60 and 7,649,753.04

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Solution

The fourth proportional to 12,439,026, 18,616,404.60 and 7,649,753.04 is: 11,448,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439,026 : 18,616,404.60 = 7,649,753.04 : x
  2. Step 2: Convert to fraction form
    12,439,026/18,616,404.60 = 7,649,753.04/x
  3. Step 3: Cross multiply
    12,439,026x = 18,616,404.60 × 7,649,753.04
  4. Step 4: Simplify right side
    12,439,026x = 142,410,897,682,720
  5. Step 5: Solve for x
    x = 142,410,897,682,720/12,439,026
  6. Step 6: Final answer
    x = 11,448,717.74

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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.