Home / 7,382,382.80-11,075,129.40-3,120,357.20

Finding the Fourth Proportional to 7,382,382.80, 11,075,129.40 and 3,120,357.20

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Solution

The fourth proportional to 7,382,382.80, 11,075,129.40 and 3,120,357.20 is: 4,681,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382,382.80 : 11,075,129.40 = 3,120,357.20 : x
  2. Step 2: Convert to fraction form
    7,382,382.80/11,075,129.40 = 3,120,357.20/x
  3. Step 3: Cross multiply
    7,382,382.80x = 11,075,129.40 × 3,120,357.20
  4. Step 4: Simplify right side
    7,382,382.80x = 34,558,359,764,221.68
  5. Step 5: Solve for x
    x = 34,558,359,764,221.68/7,382,382.80
  6. Step 6: Final answer
    x = 4,681,193.15

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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.