Home / 13,486,518.70-20,229,778.05-7,817,814.70

Finding the Fourth Proportional to 13,486,518.70, 20,229,778.05 and 7,817,814.70

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Solution

The fourth proportional to 13,486,518.70, 20,229,778.05 and 7,817,814.70 is: 11,726,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,518.70 : 20,229,778.05 = 7,817,814.70 : x
  2. Step 2: Convert to fraction form
    13,486,518.70/20,229,778.05 = 7,817,814.70/x
  3. Step 3: Cross multiply
    13,486,518.70x = 20,229,778.05 × 7,817,814.70
  4. Step 4: Simplify right side
    13,486,518.70x = 158,152,656,217,027.34
  5. Step 5: Solve for x
    x = 158,152,656,217,027.34/13,486,518.70
  6. Step 6: Final answer
    x = 11,726,722.05

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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.