Home / 20,735,997.20-31,103,995.80-18,751,950.80

Finding the Fourth Proportional to 20,735,997.20, 31,103,995.80 and 18,751,950.80

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Solution

The fourth proportional to 20,735,997.20, 31,103,995.80 and 18,751,950.80 is: 28,127,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735,997.20 : 31,103,995.80 = 18,751,950.80 : x
  2. Step 2: Convert to fraction form
    20,735,997.20/31,103,995.80 = 18,751,950.80/x
  3. Step 3: Cross multiply
    20,735,997.20x = 31,103,995.80 × 18,751,950.80
  4. Step 4: Simplify right side
    20,735,997.20x = 583,260,598,925,006.62
  5. Step 5: Solve for x
    x = 583,260,598,925,006.62/20,735,997.20
  6. Step 6: Final answer
    x = 28,127,926.20

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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.