Home / 13,191,091.20-19,786,636.80-9,789,868.80

Finding the Fourth Proportional to 13,191,091.20, 19,786,636.80 and 9,789,868.80

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Solution

The fourth proportional to 13,191,091.20, 19,786,636.80 and 9,789,868.80 is: 14,684,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,091.20 : 19,786,636.80 = 9,789,868.80 : x
  2. Step 2: Convert to fraction form
    13,191,091.20/19,786,636.80 = 9,789,868.80/x
  3. Step 3: Cross multiply
    13,191,091.20x = 19,786,636.80 × 9,789,868.80
  4. Step 4: Simplify right side
    13,191,091.20x = 193,708,578,265,251.88
  5. Step 5: Solve for x
    x = 193,708,578,265,251.88/13,191,091.20
  6. Step 6: Final answer
    x = 14,684,803.20

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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.