Home / 89,144,872.20-133,717,308.30-81,492,121.80

Finding the Fourth Proportional to 89,144,872.20, 133,717,308.30 and 81,492,121.80

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Solution

The fourth proportional to 89,144,872.20, 133,717,308.30 and 81,492,121.80 is: 122,238,182.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,144,872.20 : 133,717,308.30 = 81,492,121.80 : x
  2. Step 2: Convert to fraction form
    89,144,872.20/133,717,308.30 = 81,492,121.80/x
  3. Step 3: Cross multiply
    89,144,872.20x = 133,717,308.30 × 81,492,121.80
  4. Step 4: Simplify right side
    89,144,872.20x = 10,896,907,174,751,750
  5. Step 5: Solve for x
    x = 10,896,907,174,751,750/89,144,872.20
  6. Step 6: Final answer
    x = 122,238,182.70

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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.