Home / 20,833,549.72-31,218,941.81-18,563,140.27

Finding the Fourth Proportional to 20,833,549.72, 31,218,941.81 and 18,563,140.27

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Solution

The fourth proportional to 20,833,549.72, 31,218,941.81 and 18,563,140.27 is: 27,816,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833,549.72 : 31,218,941.81 = 18,563,140.27 : x
  2. Step 2: Convert to fraction form
    20,833,549.72/31,218,941.81 = 18,563,140.27/x
  3. Step 3: Cross multiply
    20,833,549.72x = 31,218,941.81 × 18,563,140.27
  4. Step 4: Simplify right side
    20,833,549.72x = 579,521,595,729,134.62
  5. Step 5: Solve for x
    x = 579,521,595,729,134.62/20,833,549.72
  6. Step 6: Final answer
    x = 27,816,747.68

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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.