Home / 66,144,013.60-99,209,601.20-20,086,279.20

Finding the Fourth Proportional to 66,144,013.60, 99,209,601.20 and 20,086,279.20

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Solution

The fourth proportional to 66,144,013.60, 99,209,601.20 and 20,086,279.20 is: 30,127,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144,013.60 : 99,209,601.20 = 20,086,279.20 : x
  2. Step 2: Convert to fraction form
    66,144,013.60/99,209,601.20 = 20,086,279.20/x
  3. Step 3: Cross multiply
    66,144,013.60x = 99,209,601.20 × 20,086,279.20
  4. Step 4: Simplify right side
    66,144,013.60x = 1,992,751,749,023,855
  5. Step 5: Solve for x
    x = 1,992,751,749,023,855/66,144,013.60
  6. Step 6: Final answer
    x = 30,127,469.45

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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.