Home / 20,643,987.66-30,954,025.89-6,992,558.70

Finding the Fourth Proportional to 20,643,987.66, 30,954,025.89 and 6,992,558.70

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Solution

The fourth proportional to 20,643,987.66, 30,954,025.89 and 6,992,558.70 is: 10,484,788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,987.66 : 30,954,025.89 = 6,992,558.70 : x
  2. Step 2: Convert to fraction form
    20,643,987.66/30,954,025.89 = 6,992,558.70/x
  3. Step 3: Cross multiply
    20,643,987.66x = 30,954,025.89 × 6,992,558.70
  4. Step 4: Simplify right side
    20,643,987.66x = 216,447,843,037,144.75
  5. Step 5: Solve for x
    x = 216,447,843,037,144.75/20,643,987.66
  6. Step 6: Final answer
    x = 10,484,788.43

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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.