Home / 39,153,796.64-54,032,211.24-21,751,769.60

Finding the Fourth Proportional to 39,153,796.64, 54,032,211.24 and 21,751,769.60

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Solution

The fourth proportional to 39,153,796.64, 54,032,211.24 and 21,751,769.60 is: 30,017,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153,796.64 : 54,032,211.24 = 21,751,769.60 : x
  2. Step 2: Convert to fraction form
    39,153,796.64/54,032,211.24 = 21,751,769.60/x
  3. Step 3: Cross multiply
    39,153,796.64x = 54,032,211.24 × 21,751,769.60
  4. Step 4: Simplify right side
    39,153,796.64x = 1,175,296,209,871,010.50
  5. Step 5: Solve for x
    x = 1,175,296,209,871,010.50/39,153,796.64
  6. Step 6: Final answer
    x = 30,017,426.42

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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.