Home / 20,130,658.22-27,781,094.72-11,429,640.38

Finding the Fourth Proportional to 20,130,658.22, 27,781,094.72 and 11,429,640.38

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Solution

The fourth proportional to 20,130,658.22, 27,781,094.72 and 11,429,640.38 is: 15,773,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,658.22 : 27,781,094.72 = 11,429,640.38 : x
  2. Step 2: Convert to fraction form
    20,130,658.22/27,781,094.72 = 11,429,640.38/x
  3. Step 3: Cross multiply
    20,130,658.22x = 27,781,094.72 × 11,429,640.38
  4. Step 4: Simplify right side
    20,130,658.22x = 317,527,921,901,985.44
  5. Step 5: Solve for x
    x = 317,527,921,901,985.44/20,130,658.22
  6. Step 6: Final answer
    x = 15,773,350.21

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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.