Home / 21,021,909.00-31,548,958.11-9,515,456.81

Finding the Fourth Proportional to 21,021,909.00, 31,548,958.11 and 9,515,456.81

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Solution

The fourth proportional to 21,021,909.00, 31,548,958.11 and 9,515,456.81 is: 14,280,470.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,909.00 : 31,548,958.11 = 9,515,456.81 : x
  2. Step 2: Convert to fraction form
    21,021,909.00/31,548,958.11 = 9,515,456.81/x
  3. Step 3: Cross multiply
    21,021,909.00x = 31,548,958.11 × 9,515,456.81
  4. Step 4: Simplify right side
    21,021,909.00x = 300,202,748,090,882.12
  5. Step 5: Solve for x
    x = 300,202,748,090,882.12/21,021,909.00
  6. Step 6: Final answer
    x = 14,280,470.34

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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.