Home / 61,245,791.21-91,886,622.80-18,116,143.13

Finding the Fourth Proportional to 61,245,791.21, 91,886,622.80 and 18,116,143.13

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Solution

The fourth proportional to 61,245,791.21, 91,886,622.80 and 18,116,143.13 is: 27,179,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,245,791.21 : 91,886,622.80 = 18,116,143.13 : x
  2. Step 2: Convert to fraction form
    61,245,791.21/91,886,622.80 = 18,116,143.13/x
  3. Step 3: Cross multiply
    61,245,791.21x = 91,886,622.80 × 18,116,143.13
  4. Step 4: Simplify right side
    61,245,791.21x = 1,664,631,209,827,107.50
  5. Step 5: Solve for x
    x = 1,664,631,209,827,107.50/61,245,791.21
  6. Step 6: Final answer
    x = 27,179,520.05

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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.