Home / 13,203,911.40-19,837,359.90-11,818,228.20

Finding the Fourth Proportional to 13,203,911.40, 19,837,359.90 and 11,818,228.20

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Solution

The fourth proportional to 13,203,911.40, 19,837,359.90 and 11,818,228.20 is: 17,755,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,911.40 : 19,837,359.90 = 11,818,228.20 : x
  2. Step 2: Convert to fraction form
    13,203,911.40/19,837,359.90 = 11,818,228.20/x
  3. Step 3: Cross multiply
    13,203,911.40x = 19,837,359.90 × 11,818,228.20
  4. Step 4: Simplify right side
    13,203,911.40x = 234,442,446,183,729.16
  5. Step 5: Solve for x
    x = 234,442,446,183,729.16/13,203,911.40
  6. Step 6: Final answer
    x = 17,755,530.09

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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.