Home / 26,949,765.20-40,424,647.80-7,781,147.60

Finding the Fourth Proportional to 26,949,765.20, 40,424,647.80 and 7,781,147.60

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Solution

The fourth proportional to 26,949,765.20, 40,424,647.80 and 7,781,147.60 is: 11,671,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,949,765.20 : 40,424,647.80 = 7,781,147.60 : x
  2. Step 2: Convert to fraction form
    26,949,765.20/40,424,647.80 = 7,781,147.60/x
  3. Step 3: Cross multiply
    26,949,765.20x = 40,424,647.80 × 7,781,147.60
  4. Step 4: Simplify right side
    26,949,765.20x = 314,550,151,209,815.25
  5. Step 5: Solve for x
    x = 314,550,151,209,815.25/26,949,765.20
  6. Step 6: Final answer
    x = 11,671,721.40

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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.