Home / 111,204,015.40-166,806,023.10-91,930,421.80

Finding the Fourth Proportional to 111,204,015.40, 166,806,023.10 and 91,930,421.80

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Solution

The fourth proportional to 111,204,015.40, 166,806,023.10 and 91,930,421.80 is: 137,895,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,204,015.40 : 166,806,023.10 = 91,930,421.80 : x
  2. Step 2: Convert to fraction form
    111,204,015.40/166,806,023.10 = 91,930,421.80/x
  3. Step 3: Cross multiply
    111,204,015.40x = 166,806,023.10 × 91,930,421.80
  4. Step 4: Simplify right side
    111,204,015.40x = 15,334,548,062,363,542
  5. Step 5: Solve for x
    x = 15,334,548,062,363,542/111,204,015.40
  6. Step 6: Final answer
    x = 137,895,632.70

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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.