Home / 13,190,812.60-19,786,218.90-11,889,110.20

Finding the Fourth Proportional to 13,190,812.60, 19,786,218.90 and 11,889,110.20

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Solution

The fourth proportional to 13,190,812.60, 19,786,218.90 and 11,889,110.20 is: 17,833,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190,812.60 : 19,786,218.90 = 11,889,110.20 : x
  2. Step 2: Convert to fraction form
    13,190,812.60/19,786,218.90 = 11,889,110.20/x
  3. Step 3: Cross multiply
    13,190,812.60x = 19,786,218.90 × 11,889,110.20
  4. Step 4: Simplify right side
    13,190,812.60x = 235,240,536,943,422.75
  5. Step 5: Solve for x
    x = 235,240,536,943,422.75/13,190,812.60
  6. Step 6: Final answer
    x = 17,833,665.30

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1.5x scale

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.