Home / 219,990,940.38-329,935,217.64-81,881,590.32

Finding the Fourth Proportional to 219,990,940.38, 329,935,217.64 and 81,881,590.32

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Solution

The fourth proportional to 219,990,940.38, 329,935,217.64 and 81,881,590.32 is: 122,803,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,990,940.38 : 329,935,217.64 = 81,881,590.32 : x
  2. Step 2: Convert to fraction form
    219,990,940.38/329,935,217.64 = 81,881,590.32/x
  3. Step 3: Cross multiply
    219,990,940.38x = 329,935,217.64 × 81,881,590.32
  4. Step 4: Simplify right side
    219,990,940.38x = 27,015,620,322,938,512
  5. Step 5: Solve for x
    x = 27,015,620,322,938,512/219,990,940.38
  6. Step 6: Final answer
    x = 122,803,331.25

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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.