Home / 8,305,674.90-12,458,512.35-6,290,135.70

Finding the Fourth Proportional to 8,305,674.90, 12,458,512.35 and 6,290,135.70

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Solution

The fourth proportional to 8,305,674.90, 12,458,512.35 and 6,290,135.70 is: 9,435,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,674.90 : 12,458,512.35 = 6,290,135.70 : x
  2. Step 2: Convert to fraction form
    8,305,674.90/12,458,512.35 = 6,290,135.70/x
  3. Step 3: Cross multiply
    8,305,674.90x = 12,458,512.35 × 6,290,135.70
  4. Step 4: Simplify right side
    8,305,674.90x = 78,365,733,301,625.89
  5. Step 5: Solve for x
    x = 78,365,733,301,625.89/8,305,674.90
  6. Step 6: Final answer
    x = 9,435,203.55

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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.