Home / 81,005,144.61-111,751,476.36-47,497,520.44

Finding the Fourth Proportional to 81,005,144.61, 111,751,476.36 and 47,497,520.44

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Solution

The fourth proportional to 81,005,144.61, 111,751,476.36 and 47,497,520.44 is: 65,525,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,005,144.61 : 111,751,476.36 = 47,497,520.44 : x
  2. Step 2: Convert to fraction form
    81,005,144.61/111,751,476.36 = 47,497,520.44/x
  3. Step 3: Cross multiply
    81,005,144.61x = 111,751,476.36 × 47,497,520.44
  4. Step 4: Simplify right side
    81,005,144.61x = 5,307,918,032,570,850
  5. Step 5: Solve for x
    x = 5,307,918,032,570,850/81,005,144.61
  6. Step 6: Final answer
    x = 65,525,690.47

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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.