Home / 13,120,991.30-19,680,158.10-3,537,338.60

Finding the Fourth Proportional to 13,120,991.30, 19,680,158.10 and 3,537,338.60

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Solution

The fourth proportional to 13,120,991.30, 19,680,158.10 and 3,537,338.60 is: 5,305,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,991.30 : 19,680,158.10 = 3,537,338.60 : x
  2. Step 2: Convert to fraction form
    13,120,991.30/19,680,158.10 = 3,537,338.60/x
  3. Step 3: Cross multiply
    13,120,991.30x = 19,680,158.10 × 3,537,338.60
  4. Step 4: Simplify right side
    13,120,991.30x = 69,615,382,901,232.66
  5. Step 5: Solve for x
    x = 69,615,382,901,232.66/13,120,991.30
  6. Step 6: Final answer
    x = 5,305,649.65

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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.