Home / 31,136,967.52-42,969,013.56-16,815,389.50

Finding the Fourth Proportional to 31,136,967.52, 42,969,013.56 and 16,815,389.50

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Solution

The fourth proportional to 31,136,967.52, 42,969,013.56 and 16,815,389.50 is: 23,205,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136,967.52 : 42,969,013.56 = 16,815,389.50 : x
  2. Step 2: Convert to fraction form
    31,136,967.52/42,969,013.56 = 16,815,389.50/x
  3. Step 3: Cross multiply
    31,136,967.52x = 42,969,013.56 × 16,815,389.50
  4. Step 4: Simplify right side
    31,136,967.52x = 722,540,699,442,181.62
  5. Step 5: Solve for x
    x = 722,540,699,442,181.62/31,136,967.52
  6. Step 6: Final answer
    x = 23,205,236.64

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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.