Home / 28,587,028.10-42,856,433.51-12,400,785.95

Finding the Fourth Proportional to 28,587,028.10, 42,856,433.51 and 12,400,785.95

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Solution

The fourth proportional to 28,587,028.10, 42,856,433.51 and 12,400,785.95 is: 18,590,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587,028.10 : 42,856,433.51 = 12,400,785.95 : x
  2. Step 2: Convert to fraction form
    28,587,028.10/42,856,433.51 = 12,400,785.95/x
  3. Step 3: Cross multiply
    28,587,028.10x = 42,856,433.51 × 12,400,785.95
  4. Step 4: Simplify right side
    28,587,028.10x = 531,453,458,261,631.12
  5. Step 5: Solve for x
    x = 531,453,458,261,631.12/28,587,028.10
  6. Step 6: Final answer
    x = 18,590,720.82

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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.