Home / 28,396,629.34-39,187,358.94-15,343,888.21

Finding the Fourth Proportional to 28,396,629.34, 39,187,358.94 and 15,343,888.21

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Solution

The fourth proportional to 28,396,629.34, 39,187,358.94 and 15,343,888.21 is: 21,174,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396,629.34 : 39,187,358.94 = 15,343,888.21 : x
  2. Step 2: Convert to fraction form
    28,396,629.34/39,187,358.94 = 15,343,888.21/x
  3. Step 3: Cross multiply
    28,396,629.34x = 39,187,358.94 × 15,343,888.21
  4. Step 4: Simplify right side
    28,396,629.34x = 601,286,454,780,075.25
  5. Step 5: Solve for x
    x = 601,286,454,780,075.25/28,396,629.34
  6. Step 6: Final answer
    x = 21,174,571.38

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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.