Home / 20,796,834.51-31,198,090.41-8,663,459.85

Finding the Fourth Proportional to 20,796,834.51, 31,198,090.41 and 8,663,459.85

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Solution

The fourth proportional to 20,796,834.51, 31,198,090.41 and 8,663,459.85 is: 12,996,372.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,834.51 : 31,198,090.41 = 8,663,459.85 : x
  2. Step 2: Convert to fraction form
    20,796,834.51/31,198,090.41 = 8,663,459.85/x
  3. Step 3: Cross multiply
    20,796,834.51x = 31,198,090.41 × 8,663,459.85
  4. Step 4: Simplify right side
    20,796,834.51x = 270,283,403,663,705.03
  5. Step 5: Solve for x
    x = 270,283,403,663,705.03/20,796,834.51
  6. Step 6: Final answer
    x = 12,996,372.29

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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.