Home / 28,856,315.34-39,821,728.95-15,804,395.06

Finding the Fourth Proportional to 28,856,315.34, 39,821,728.95 and 15,804,395.06

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Solution

The fourth proportional to 28,856,315.34, 39,821,728.95 and 15,804,395.06 is: 21,810,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856,315.34 : 39,821,728.95 = 15,804,395.06 : x
  2. Step 2: Convert to fraction form
    28,856,315.34/39,821,728.95 = 15,804,395.06/x
  3. Step 3: Cross multiply
    28,856,315.34x = 39,821,728.95 × 15,804,395.06
  4. Step 4: Simplify right side
    28,856,315.34x = 629,358,336,098,930.38
  5. Step 5: Solve for x
    x = 629,358,336,098,930.38/28,856,315.34
  6. Step 6: Final answer
    x = 21,810,072.72

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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.