Home / 219,669,531.21-329,493,647.94-81,522,070.20

Finding the Fourth Proportional to 219,669,531.21, 329,493,647.94 and 81,522,070.20

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Solution

The fourth proportional to 219,669,531.21, 329,493,647.94 and 81,522,070.20 is: 122,279,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,669,531.21 : 329,493,647.94 = 81,522,070.20 : x
  2. Step 2: Convert to fraction form
    219,669,531.21/329,493,647.94 = 81,522,070.20/x
  3. Step 3: Cross multiply
    219,669,531.21x = 329,493,647.94 × 81,522,070.20
  4. Step 4: Simplify right side
    219,669,531.21x = 26,861,004,297,818,768
  5. Step 5: Solve for x
    x = 26,861,004,297,818,768/219,669,531.21
  6. Step 6: Final answer
    x = 122,279,153.37

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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.