Home / 20,422,057.40-30,633,086.10-10,832,499.80

Finding the Fourth Proportional to 20,422,057.40, 30,633,086.10 and 10,832,499.80

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Solution

The fourth proportional to 20,422,057.40, 30,633,086.10 and 10,832,499.80 is: 16,248,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,057.40 : 30,633,086.10 = 10,832,499.80 : x
  2. Step 2: Convert to fraction form
    20,422,057.40/30,633,086.10 = 10,832,499.80/x
  3. Step 3: Cross multiply
    20,422,057.40x = 30,633,086.10 × 10,832,499.80
  4. Step 4: Simplify right side
    20,422,057.40x = 331,832,899,051,632.81
  5. Step 5: Solve for x
    x = 331,832,899,051,632.81/20,422,057.40
  6. Step 6: Final answer
    x = 16,248,749.70

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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.