Home / 31,709,830.22-43,758,821.44-18,657,934.50

Finding the Fourth Proportional to 31,709,830.22, 43,758,821.44 and 18,657,934.50

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Solution

The fourth proportional to 31,709,830.22, 43,758,821.44 and 18,657,934.50 is: 25,747,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709,830.22 : 43,758,821.44 = 18,657,934.50 : x
  2. Step 2: Convert to fraction form
    31,709,830.22/43,758,821.44 = 18,657,934.50/x
  3. Step 3: Cross multiply
    31,709,830.22x = 43,758,821.44 × 18,657,934.50
  4. Step 4: Simplify right side
    31,709,830.22x = 816,449,224,359,648.88
  5. Step 5: Solve for x
    x = 816,449,224,359,648.88/31,709,830.22
  6. Step 6: Final answer
    x = 25,747,511.69

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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.