Home / 217,307,969.40-325,961,954.10-71,763,994.20

Finding the Fourth Proportional to 217,307,969.40, 325,961,954.10 and 71,763,994.20

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Solution

The fourth proportional to 217,307,969.40, 325,961,954.10 and 71,763,994.20 is: 107,645,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,307,969.40 : 325,961,954.10 = 71,763,994.20 : x
  2. Step 2: Convert to fraction form
    217,307,969.40/325,961,954.10 = 71,763,994.20/x
  3. Step 3: Cross multiply
    217,307,969.40x = 325,961,954.10 × 71,763,994.20
  4. Step 4: Simplify right side
    217,307,969.40x = 23,392,331,783,453,068
  5. Step 5: Solve for x
    x = 23,392,331,783,453,068/217,307,969.40
  6. Step 6: Final answer
    x = 107,645,991.30

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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.