Home / 120,635,101.92-180,870,043.63-61,432,884.08

Finding the Fourth Proportional to 120,635,101.92, 180,870,043.63 and 61,432,884.08

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Solution

The fourth proportional to 120,635,101.92, 180,870,043.63 and 61,432,884.08 is: 92,107,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,635,101.92 : 180,870,043.63 = 61,432,884.08 : x
  2. Step 2: Convert to fraction form
    120,635,101.92/180,870,043.63 = 61,432,884.08/x
  3. Step 3: Cross multiply
    120,635,101.92x = 180,870,043.63 × 61,432,884.08
  4. Step 4: Simplify right side
    120,635,101.92x = 11,111,368,424,450,530
  5. Step 5: Solve for x
    x = 11,111,368,424,450,530/120,635,101.92
  6. Step 6: Final answer
    x = 92,107,257.73

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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.