Home / 20,131,330.16-27,781,555.21-11,429,325.20

Finding the Fourth Proportional to 20,131,330.16, 27,781,555.21 and 11,429,325.20

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Solution

The fourth proportional to 20,131,330.16, 27,781,555.21 and 11,429,325.20 is: 15,772,650.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,330.16 : 27,781,555.21 = 11,429,325.20 : x
  2. Step 2: Convert to fraction form
    20,131,330.16/27,781,555.21 = 11,429,325.20/x
  3. Step 3: Cross multiply
    20,131,330.16x = 27,781,555.21 × 11,429,325.20
  4. Step 4: Simplify right side
    20,131,330.16x = 317,524,429,056,844.31
  5. Step 5: Solve for x
    x = 317,524,429,056,844.31/20,131,330.16
  6. Step 6: Final answer
    x = 15,772,650.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.