Home / 13,902,953.10-20,854,429.65-8,220,252.30

Finding the Fourth Proportional to 13,902,953.10, 20,854,429.65 and 8,220,252.30

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Solution

The fourth proportional to 13,902,953.10, 20,854,429.65 and 8,220,252.30 is: 12,330,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,953.10 : 20,854,429.65 = 8,220,252.30 : x
  2. Step 2: Convert to fraction form
    13,902,953.10/20,854,429.65 = 8,220,252.30/x
  3. Step 3: Cross multiply
    13,902,953.10x = 20,854,429.65 × 8,220,252.30
  4. Step 4: Simplify right side
    13,902,953.10x = 171,428,673,295,600.69
  5. Step 5: Solve for x
    x = 171,428,673,295,600.69/13,902,953.10
  6. Step 6: Final answer
    x = 12,330,378.45

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Similar ratio
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1.5x scale

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.