Home / 20,733,991.40-31,100,987.10-18,550,490.60

Finding the Fourth Proportional to 20,733,991.40, 31,100,987.10 and 18,550,490.60

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Solution

The fourth proportional to 20,733,991.40, 31,100,987.10 and 18,550,490.60 is: 27,825,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,991.40 : 31,100,987.10 = 18,550,490.60 : x
  2. Step 2: Convert to fraction form
    20,733,991.40/31,100,987.10 = 18,550,490.60/x
  3. Step 3: Cross multiply
    20,733,991.40x = 31,100,987.10 × 18,550,490.60
  4. Step 4: Simplify right side
    20,733,991.40x = 576,938,568,849,271.38
  5. Step 5: Solve for x
    x = 576,938,568,849,271.38/20,733,991.40
  6. Step 6: Final answer
    x = 27,825,735.90

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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.