Home / 120,670,620.40-181,005,930.60-111,222,780.40

Finding the Fourth Proportional to 120,670,620.40, 181,005,930.60 and 111,222,780.40

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Solution

The fourth proportional to 120,670,620.40, 181,005,930.60 and 111,222,780.40 is: 166,834,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670,620.40 : 181,005,930.60 = 111,222,780.40 : x
  2. Step 2: Convert to fraction form
    120,670,620.40/181,005,930.60 = 111,222,780.40/x
  3. Step 3: Cross multiply
    120,670,620.40x = 181,005,930.60 × 111,222,780.40
  4. Step 4: Simplify right side
    120,670,620.40x = 20,131,982,870,221,440
  5. Step 5: Solve for x
    x = 20,131,982,870,221,440/120,670,620.40
  6. Step 6: Final answer
    x = 166,834,170.60

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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.