Home / 8,619,340.40-12,929,010.60-3,821,937.20

Finding the Fourth Proportional to 8,619,340.40, 12,929,010.60 and 3,821,937.20

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Solution

The fourth proportional to 8,619,340.40, 12,929,010.60 and 3,821,937.20 is: 5,732,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,340.40 : 12,929,010.60 = 3,821,937.20 : x
  2. Step 2: Convert to fraction form
    8,619,340.40/12,929,010.60 = 3,821,937.20/x
  3. Step 3: Cross multiply
    8,619,340.40x = 12,929,010.60 × 3,821,937.20
  4. Step 4: Simplify right side
    8,619,340.40x = 49,413,866,571,334.32
  5. Step 5: Solve for x
    x = 49,413,866,571,334.32/8,619,340.40
  6. Step 6: Final answer
    x = 5,732,905.80

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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.