Home / 13,214,103.18-19,818,792.50-8,407,514.58

Finding the Fourth Proportional to 13,214,103.18, 19,818,792.50 and 8,407,514.58

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Solution

The fourth proportional to 13,214,103.18, 19,818,792.50 and 8,407,514.58 is: 12,609,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214,103.18 : 19,818,792.50 = 8,407,514.58 : x
  2. Step 2: Convert to fraction form
    13,214,103.18/19,818,792.50 = 8,407,514.58/x
  3. Step 3: Cross multiply
    13,214,103.18x = 19,818,792.50 × 8,407,514.58
  4. Step 4: Simplify right side
    13,214,103.18x = 166,626,786,901,744.66
  5. Step 5: Solve for x
    x = 166,626,786,901,744.66/13,214,103.18
  6. Step 6: Final answer
    x = 12,609,768.87

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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.