Home / 81,590,963.22-122,309,502.39-40,611,658.50

Finding the Fourth Proportional to 81,590,963.22, 122,309,502.39 and 40,611,658.50

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Solution

The fourth proportional to 81,590,963.22, 122,309,502.39 and 40,611,658.50 is: 60,879,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590,963.22 : 122,309,502.39 = 40,611,658.50 : x
  2. Step 2: Convert to fraction form
    81,590,963.22/122,309,502.39 = 40,611,658.50/x
  3. Step 3: Cross multiply
    81,590,963.22x = 122,309,502.39 × 40,611,658.50
  4. Step 4: Simplify right side
    81,590,963.22x = 4,967,191,742,367,614
  5. Step 5: Solve for x
    x = 4,967,191,742,367,614/81,590,963.22
  6. Step 6: Final answer
    x = 60,879,189.88

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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.