Home / 13,828,825.80-20,743,238.70-13,120,237.80

Finding the Fourth Proportional to 13,828,825.80, 20,743,238.70 and 13,120,237.80

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Solution

The fourth proportional to 13,828,825.80, 20,743,238.70 and 13,120,237.80 is: 19,680,356.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828,825.80 : 20,743,238.70 = 13,120,237.80 : x
  2. Step 2: Convert to fraction form
    13,828,825.80/20,743,238.70 = 13,120,237.80/x
  3. Step 3: Cross multiply
    13,828,825.80x = 20,743,238.70 × 13,120,237.80
  4. Step 4: Simplify right side
    13,828,825.80x = 272,156,224,486,162.88
  5. Step 5: Solve for x
    x = 272,156,224,486,162.88/13,828,825.80
  6. Step 6: Final answer
    x = 19,680,356.70

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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.