Home / 12,518,498.03-18,777,545.45-3,998,778.35

Finding the Fourth Proportional to 12,518,498.03, 18,777,545.45 and 3,998,778.35

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Solution

The fourth proportional to 12,518,498.03, 18,777,545.45 and 3,998,778.35 is: 5,998,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518,498.03 : 18,777,545.45 = 3,998,778.35 : x
  2. Step 2: Convert to fraction form
    12,518,498.03/18,777,545.45 = 3,998,778.35/x
  3. Step 3: Cross multiply
    12,518,498.03x = 18,777,545.45 × 3,998,778.35
  4. Step 4: Simplify right side
    12,518,498.03x = 75,087,242,191,607.12
  5. Step 5: Solve for x
    x = 75,087,242,191,607.12/12,518,498.03
  6. Step 6: Final answer
    x = 5,998,103.13

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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.