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Finding the Fourth Proportional to 219,792,662.07, 303,314,470.52 and 120,679,829.12

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Solution

The fourth proportional to 219,792,662.07, 303,314,470.52 and 120,679,829.12 is: 166,538,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,792,662.07 : 303,314,470.52 = 120,679,829.12 : x
  2. Step 2: Convert to fraction form
    219,792,662.07/303,314,470.52 = 120,679,829.12/x
  3. Step 3: Cross multiply
    219,792,662.07x = 303,314,470.52 × 120,679,829.12
  4. Step 4: Simplify right side
    219,792,662.07x = 36,603,938,471,976,880
  5. Step 5: Solve for x
    x = 36,603,938,471,976,880/219,792,662.07
  6. Step 6: Final answer
    x = 166,538,491.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.