Home / 28,551,220.78-39,400,734.66-15,498,488.54

Finding the Fourth Proportional to 28,551,220.78, 39,400,734.66 and 15,498,488.54

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Solution

The fourth proportional to 28,551,220.78, 39,400,734.66 and 15,498,488.54 is: 21,387,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,220.78 : 39,400,734.66 = 15,498,488.54 : x
  2. Step 2: Convert to fraction form
    28,551,220.78/39,400,734.66 = 15,498,488.54/x
  3. Step 3: Cross multiply
    28,551,220.78x = 39,400,734.66 × 15,498,488.54
  4. Step 4: Simplify right side
    28,551,220.78x = 610,651,834,321,094.75
  5. Step 5: Solve for x
    x = 610,651,834,321,094.75/28,551,220.78
  6. Step 6: Final answer
    x = 21,387,941.31

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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.