Home / 20,777,495.64-31,166,243.73-5,631,427.14

Finding the Fourth Proportional to 20,777,495.64, 31,166,243.73 and 5,631,427.14

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Solution

The fourth proportional to 20,777,495.64, 31,166,243.73 and 5,631,427.14 is: 8,447,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,495.64 : 31,166,243.73 = 5,631,427.14 : x
  2. Step 2: Convert to fraction form
    20,777,495.64/31,166,243.73 = 5,631,427.14/x
  3. Step 3: Cross multiply
    20,777,495.64x = 31,166,243.73 × 5,631,427.14
  4. Step 4: Simplify right side
    20,777,495.64x = 175,510,430,792,976.81
  5. Step 5: Solve for x
    x = 175,510,430,792,976.81/20,777,495.64
  6. Step 6: Final answer
    x = 8,447,140.78

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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.