Home / 20,837,101.50-31,243,537.20-7,884,251.13

Finding the Fourth Proportional to 20,837,101.50, 31,243,537.20 and 7,884,251.13

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Solution

The fourth proportional to 20,837,101.50, 31,243,537.20 and 7,884,251.13 is: 11,821,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837,101.50 : 31,243,537.20 = 7,884,251.13 : x
  2. Step 2: Convert to fraction form
    20,837,101.50/31,243,537.20 = 7,884,251.13/x
  3. Step 3: Cross multiply
    20,837,101.50x = 31,243,537.20 × 7,884,251.13
  4. Step 4: Simplify right side
    20,837,101.50x = 246,331,893,474,297.03
  5. Step 5: Solve for x
    x = 246,331,893,474,297.03/20,837,101.50
  6. Step 6: Final answer
    x = 11,821,792.66

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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.