Home / 38,721,616.08-53,433,801.60-21,314,561.36

Finding the Fourth Proportional to 38,721,616.08, 53,433,801.60 and 21,314,561.36

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Solution

The fourth proportional to 38,721,616.08, 53,433,801.60 and 21,314,561.36 is: 29,412,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721,616.08 : 53,433,801.60 = 21,314,561.36 : x
  2. Step 2: Convert to fraction form
    38,721,616.08/53,433,801.60 = 21,314,561.36/x
  3. Step 3: Cross multiply
    38,721,616.08x = 53,433,801.60 × 21,314,561.36
  4. Step 4: Simplify right side
    38,721,616.08x = 1,138,918,042,901,266.25
  5. Step 5: Solve for x
    x = 1,138,918,042,901,266.25/38,721,616.08
  6. Step 6: Final answer
    x = 29,412,978.03

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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.