Home / 13,190,813.10-19,786,219.65-11,889,110.70

Finding the Fourth Proportional to 13,190,813.10, 19,786,219.65 and 11,889,110.70

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Solution

The fourth proportional to 13,190,813.10, 19,786,219.65 and 11,889,110.70 is: 17,833,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190,813.10 : 19,786,219.65 = 11,889,110.70 : x
  2. Step 2: Convert to fraction form
    13,190,813.10/19,786,219.65 = 11,889,110.70/x
  3. Step 3: Cross multiply
    13,190,813.10x = 19,786,219.65 × 11,889,110.70
  4. Step 4: Simplify right side
    13,190,813.10x = 235,240,555,753,365.22
  5. Step 5: Solve for x
    x = 235,240,555,753,365.22/13,190,813.10
  6. Step 6: Final answer
    x = 17,833,666.05

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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.