Home / 28,243,028.52-38,972,260.53-15,850,279.44

Finding the Fourth Proportional to 28,243,028.52, 38,972,260.53 and 15,850,279.44

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Solution

The fourth proportional to 28,243,028.52, 38,972,260.53 and 15,850,279.44 is: 21,871,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,028.52 : 38,972,260.53 = 15,850,279.44 : x
  2. Step 2: Convert to fraction form
    28,243,028.52/38,972,260.53 = 15,850,279.44/x
  3. Step 3: Cross multiply
    28,243,028.52x = 38,972,260.53 × 15,850,279.44
  4. Step 4: Simplify right side
    28,243,028.52x = 617,721,219,808,982.50
  5. Step 5: Solve for x
    x = 617,721,219,808,982.50/28,243,028.52
  6. Step 6: Final answer
    x = 21,871,635.31

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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.