Home / 8,305,844.40-12,458,766.60-6,290,305.20

Finding the Fourth Proportional to 8,305,844.40, 12,458,766.60 and 6,290,305.20

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Solution

The fourth proportional to 8,305,844.40, 12,458,766.60 and 6,290,305.20 is: 9,435,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,844.40 : 12,458,766.60 = 6,290,305.20 : x
  2. Step 2: Convert to fraction form
    8,305,844.40/12,458,766.60 = 6,290,305.20/x
  3. Step 3: Cross multiply
    8,305,844.40x = 12,458,766.60 × 6,290,305.20
  4. Step 4: Simplify right side
    8,305,844.40x = 78,369,444,329,566.31
  5. Step 5: Solve for x
    x = 78,369,444,329,566.31/8,305,844.40
  6. Step 6: Final answer
    x = 9,435,457.80

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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.