Home / 90,647,386.67-135,970,910.08-28,403,466.38

Finding the Fourth Proportional to 90,647,386.67, 135,970,910.08 and 28,403,466.38

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Solution

The fourth proportional to 90,647,386.67, 135,970,910.08 and 28,403,466.38 is: 42,605,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647,386.67 : 135,970,910.08 = 28,403,466.38 : x
  2. Step 2: Convert to fraction form
    90,647,386.67/135,970,910.08 = 28,403,466.38/x
  3. Step 3: Cross multiply
    90,647,386.67x = 135,970,910.08 × 28,403,466.38
  4. Step 4: Simplify right side
    90,647,386.67x = 3,862,045,172,874,310.50
  5. Step 5: Solve for x
    x = 3,862,045,172,874,310.50/90,647,386.67
  6. Step 6: Final answer
    x = 42,605,146.32

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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.