Home / 20,631,982.17-28,463,305.46-12,883,572.39

Finding the Fourth Proportional to 20,631,982.17, 28,463,305.46 and 12,883,572.39

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Solution

The fourth proportional to 20,631,982.17, 28,463,305.46 and 12,883,572.39 is: 17,773,816.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,982.17 : 28,463,305.46 = 12,883,572.39 : x
  2. Step 2: Convert to fraction form
    20,631,982.17/28,463,305.46 = 12,883,572.39/x
  3. Step 3: Cross multiply
    20,631,982.17x = 28,463,305.46 × 12,883,572.39
  4. Step 4: Simplify right side
    20,631,982.17x = 366,709,056,288,174.38
  5. Step 5: Solve for x
    x = 366,709,056,288,174.38/20,631,982.17
  6. Step 6: Final answer
    x = 17,773,816.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.