Home / 28,775,315.32-39,709,872.66-15,722,667.16

Finding the Fourth Proportional to 28,775,315.32, 39,709,872.66 and 15,722,667.16

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Solution

The fourth proportional to 28,775,315.32, 39,709,872.66 and 15,722,667.16 is: 21,697,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,315.32 : 39,709,872.66 = 15,722,667.16 : x
  2. Step 2: Convert to fraction form
    28,775,315.32/39,709,872.66 = 15,722,667.16/x
  3. Step 3: Cross multiply
    28,775,315.32x = 39,709,872.66 × 15,722,667.16
  4. Step 4: Simplify right side
    28,775,315.32x = 624,345,110,799,163.75
  5. Step 5: Solve for x
    x = 624,345,110,799,163.75/28,775,315.32
  6. Step 6: Final answer
    x = 21,697,246.54

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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.