Home / 13,320,365.94-18,382,096.80-7,519,197.78

Finding the Fourth Proportional to 13,320,365.94, 18,382,096.80 and 7,519,197.78

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Solution

The fourth proportional to 13,320,365.94, 18,382,096.80 and 7,519,197.78 is: 10,376,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,365.94 : 18,382,096.80 = 7,519,197.78 : x
  2. Step 2: Convert to fraction form
    13,320,365.94/18,382,096.80 = 7,519,197.78/x
  3. Step 3: Cross multiply
    13,320,365.94x = 18,382,096.80 × 7,519,197.78
  4. Step 4: Simplify right side
    13,320,365.94x = 138,218,621,450,305.11
  5. Step 5: Solve for x
    x = 138,218,621,450,305.11/13,320,365.94
  6. Step 6: Final answer
    x = 10,376,488.31

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1.5x scale

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.