Home / 18,759,231.20-28,117,851.60-7,974,696.80

Finding the Fourth Proportional to 18,759,231.20, 28,117,851.60 and 7,974,696.80

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Solution

The fourth proportional to 18,759,231.20, 28,117,851.60 and 7,974,696.80 is: 11,953,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759,231.20 : 28,117,851.60 = 7,974,696.80 : x
  2. Step 2: Convert to fraction form
    18,759,231.20/28,117,851.60 = 7,974,696.80/x
  3. Step 3: Cross multiply
    18,759,231.20x = 28,117,851.60 × 7,974,696.80
  4. Step 4: Simplify right side
    18,759,231.20x = 224,231,341,177,394.88
  5. Step 5: Solve for x
    x = 224,231,341,177,394.88/18,759,231.20
  6. Step 6: Final answer
    x = 11,953,119.98

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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.