Home / 15,133,133.80-20,883,667.62-8,257,555.72

Finding the Fourth Proportional to 15,133,133.80, 20,883,667.62 and 8,257,555.72

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Solution

The fourth proportional to 15,133,133.80, 20,883,667.62 and 8,257,555.72 is: 11,395,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133,133.80 : 20,883,667.62 = 8,257,555.72 : x
  2. Step 2: Convert to fraction form
    15,133,133.80/20,883,667.62 = 8,257,555.72/x
  3. Step 3: Cross multiply
    15,133,133.80x = 20,883,667.62 × 8,257,555.72
  4. Step 4: Simplify right side
    15,133,133.80x = 172,448,049,010,109.78
  5. Step 5: Solve for x
    x = 172,448,049,010,109.78/15,133,133.80
  6. Step 6: Final answer
    x = 11,395,395.78

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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.