Home / 13,012,121.12-17,956,507.92-7,210,891.04

Finding the Fourth Proportional to 13,012,121.12, 17,956,507.92 and 7,210,891.04

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Solution

The fourth proportional to 13,012,121.12, 17,956,507.92 and 7,210,891.04 is: 9,950,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,121.12 : 17,956,507.92 = 7,210,891.04 : x
  2. Step 2: Convert to fraction form
    13,012,121.12/17,956,507.92 = 7,210,891.04/x
  3. Step 3: Cross multiply
    13,012,121.12x = 17,956,507.92 × 7,210,891.04
  4. Step 4: Simplify right side
    13,012,121.12x = 129,482,422,070,017.05
  5. Step 5: Solve for x
    x = 129,482,422,070,017.05/13,012,121.12
  6. Step 6: Final answer
    x = 9,950,908.15

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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.