Home / 13,065,821.64-18,031,296.78-7,185,910.59

Finding the Fourth Proportional to 13,065,821.64, 18,031,296.78 and 7,185,910.59

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Solution

The fourth proportional to 13,065,821.64, 18,031,296.78 and 7,185,910.59 is: 9,916,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065,821.64 : 18,031,296.78 = 7,185,910.59 : x
  2. Step 2: Convert to fraction form
    13,065,821.64/18,031,296.78 = 7,185,910.59/x
  3. Step 3: Cross multiply
    13,065,821.64x = 18,031,296.78 × 7,185,910.59
  4. Step 4: Simplify right side
    13,065,821.64x = 129,571,286,482,834.91
  5. Step 5: Solve for x
    x = 129,571,286,482,834.91/13,065,821.64
  6. Step 6: Final answer
    x = 9,916,811.21

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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.