Home / 13,809,991.02-20,720,960.68-7,412,775.45

Finding the Fourth Proportional to 13,809,991.02, 20,720,960.68 and 7,412,775.45

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Solution

The fourth proportional to 13,809,991.02, 20,720,960.68 and 7,412,775.45 is: 11,122,369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809,991.02 : 20,720,960.68 = 7,412,775.45 : x
  2. Step 2: Convert to fraction form
    13,809,991.02/20,720,960.68 = 7,412,775.45/x
  3. Step 3: Cross multiply
    13,809,991.02x = 20,720,960.68 × 7,412,775.45
  4. Step 4: Simplify right side
    13,809,991.02x = 153,599,828,546,782.72
  5. Step 5: Solve for x
    x = 153,599,828,546,782.72/13,809,991.02
  6. Step 6: Final answer
    x = 11,122,369.91

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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.