Home / 28,242,305.78-38,972,243.07-15,850,005.85

Finding the Fourth Proportional to 28,242,305.78, 38,972,243.07 and 15,850,005.85

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Solution

The fourth proportional to 28,242,305.78, 38,972,243.07 and 15,850,005.85 is: 21,871,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,305.78 : 38,972,243.07 = 15,850,005.85 : x
  2. Step 2: Convert to fraction form
    28,242,305.78/38,972,243.07 = 15,850,005.85/x
  3. Step 3: Cross multiply
    28,242,305.78x = 38,972,243.07 × 15,850,005.85
  4. Step 4: Simplify right side
    28,242,305.78x = 617,710,280,789,538.75
  5. Step 5: Solve for x
    x = 617,710,280,789,538.75/28,242,305.78
  6. Step 6: Final answer
    x = 21,871,807.69

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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.