Home / 8,228,807.20-12,343,210.80-7,855,559.20

Finding the Fourth Proportional to 8,228,807.20, 12,343,210.80 and 7,855,559.20

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Solution

The fourth proportional to 8,228,807.20, 12,343,210.80 and 7,855,559.20 is: 11,783,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228,807.20 : 12,343,210.80 = 7,855,559.20 : x
  2. Step 2: Convert to fraction form
    8,228,807.20/12,343,210.80 = 7,855,559.20/x
  3. Step 3: Cross multiply
    8,228,807.20x = 12,343,210.80 × 7,855,559.20
  4. Step 4: Simplify right side
    8,228,807.20x = 96,962,823,157,479.38
  5. Step 5: Solve for x
    x = 96,962,823,157,479.38/8,228,807.20
  6. Step 6: Final answer
    x = 11,783,338.80

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Double scale
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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.