Home / 6,605,143.20-9,907,714.80-5,542,261.20

Finding the Fourth Proportional to 6,605,143.20, 9,907,714.80 and 5,542,261.20

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Solution

The fourth proportional to 6,605,143.20, 9,907,714.80 and 5,542,261.20 is: 8,313,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605,143.20 : 9,907,714.80 = 5,542,261.20 : x
  2. Step 2: Convert to fraction form
    6,605,143.20/9,907,714.80 = 5,542,261.20/x
  3. Step 3: Cross multiply
    6,605,143.20x = 9,907,714.80 × 5,542,261.20
  4. Step 4: Simplify right side
    6,605,143.20x = 54,911,143,316,705.77
  5. Step 5: Solve for x
    x = 54,911,143,316,705.77/6,605,143.20
  6. Step 6: Final answer
    x = 8,313,391.80

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Similar ratio
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1.5x scale

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.