Home / 15,021,264.54-20,729,350.56-8,145,744.78

Finding the Fourth Proportional to 15,021,264.54, 20,729,350.56 and 8,145,744.78

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Solution

The fourth proportional to 15,021,264.54, 20,729,350.56 and 8,145,744.78 is: 11,241,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,264.54 : 20,729,350.56 = 8,145,744.78 : x
  2. Step 2: Convert to fraction form
    15,021,264.54/20,729,350.56 = 8,145,744.78/x
  3. Step 3: Cross multiply
    15,021,264.54x = 20,729,350.56 × 8,145,744.78
  4. Step 4: Simplify right side
    15,021,264.54x = 168,855,999,116,910.06
  5. Step 5: Solve for x
    x = 168,855,999,116,910.06/15,021,264.54
  6. Step 6: Final answer
    x = 11,241,130.78

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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.