Home / 19,720,393.20-29,580,589.80-9,103,561.20

Finding the Fourth Proportional to 19,720,393.20, 29,580,589.80 and 9,103,561.20

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Solution

The fourth proportional to 19,720,393.20, 29,580,589.80 and 9,103,561.20 is: 13,655,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,393.20 : 29,580,589.80 = 9,103,561.20 : x
  2. Step 2: Convert to fraction form
    19,720,393.20/29,580,589.80 = 9,103,561.20/x
  3. Step 3: Cross multiply
    19,720,393.20x = 29,580,589.80 × 9,103,561.20
  4. Step 4: Simplify right side
    19,720,393.20x = 269,288,709,576,395.75
  5. Step 5: Solve for x
    x = 269,288,709,576,395.75/19,720,393.20
  6. Step 6: Final answer
    x = 13,655,341.80

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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.