Home / 8,018,998.80-12,028,498.20-4,989,785.10

Finding the Fourth Proportional to 8,018,998.80, 12,028,498.20 and 4,989,785.10

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Solution

The fourth proportional to 8,018,998.80, 12,028,498.20 and 4,989,785.10 is: 7,484,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018,998.80 : 12,028,498.20 = 4,989,785.10 : x
  2. Step 2: Convert to fraction form
    8,018,998.80/12,028,498.20 = 4,989,785.10/x
  3. Step 3: Cross multiply
    8,018,998.80x = 12,028,498.20 × 4,989,785.10
  4. Step 4: Simplify right side
    8,018,998.80x = 60,019,621,093,736.81
  5. Step 5: Solve for x
    x = 60,019,621,093,736.81/8,018,998.80
  6. Step 6: Final answer
    x = 7,484,677.65

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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.