Home / 13,328,453.60-19,992,680.40-7,644,003.20

Finding the Fourth Proportional to 13,328,453.60, 19,992,680.40 and 7,644,003.20

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Solution

The fourth proportional to 13,328,453.60, 19,992,680.40 and 7,644,003.20 is: 11,466,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328,453.60 : 19,992,680.40 = 7,644,003.20 : x
  2. Step 2: Convert to fraction form
    13,328,453.60/19,992,680.40 = 7,644,003.20/x
  3. Step 3: Cross multiply
    13,328,453.60x = 19,992,680.40 × 7,644,003.20
  4. Step 4: Simplify right side
    13,328,453.60x = 152,824,112,954,177.28
  5. Step 5: Solve for x
    x = 152,824,112,954,177.28/13,328,453.60
  6. Step 6: Final answer
    x = 11,466,004.80

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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.