Home / 20,444,472.40-30,666,708.60-11,835,128.20

Finding the Fourth Proportional to 20,444,472.40, 30,666,708.60 and 11,835,128.20

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Solution

The fourth proportional to 20,444,472.40, 30,666,708.60 and 11,835,128.20 is: 17,752,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444,472.40 : 30,666,708.60 = 11,835,128.20 : x
  2. Step 2: Convert to fraction form
    20,444,472.40/30,666,708.60 = 11,835,128.20/x
  3. Step 3: Cross multiply
    20,444,472.40x = 30,666,708.60 × 11,835,128.20
  4. Step 4: Simplify right side
    20,444,472.40x = 362,944,427,753,042.50
  5. Step 5: Solve for x
    x = 362,944,427,753,042.50/20,444,472.40
  6. Step 6: Final answer
    x = 17,752,692.30

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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.