Home / 8,255,765.40-12,383,648.10-4,429,390.20

Finding the Fourth Proportional to 8,255,765.40, 12,383,648.10 and 4,429,390.20

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Solution

The fourth proportional to 8,255,765.40, 12,383,648.10 and 4,429,390.20 is: 6,644,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255,765.40 : 12,383,648.10 = 4,429,390.20 : x
  2. Step 2: Convert to fraction form
    8,255,765.40/12,383,648.10 = 4,429,390.20/x
  3. Step 3: Cross multiply
    8,255,765.40x = 12,383,648.10 × 4,429,390.20
  4. Step 4: Simplify right side
    8,255,765.40x = 54,852,009,534,388.62
  5. Step 5: Solve for x
    x = 54,852,009,534,388.62/8,255,765.40
  6. Step 6: Final answer
    x = 6,644,085.30

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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.