Home / 28,242,982.96-38,972,197.95-15,850,234.01

Finding the Fourth Proportional to 28,242,982.96, 38,972,197.95 and 15,850,234.01

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Solution

The fourth proportional to 28,242,982.96, 38,972,197.95 and 15,850,234.01 is: 21,871,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,982.96 : 38,972,197.95 = 15,850,234.01 : x
  2. Step 2: Convert to fraction form
    28,242,982.96/38,972,197.95 = 15,850,234.01/x
  3. Step 3: Cross multiply
    28,242,982.96x = 38,972,197.95 × 15,850,234.01
  4. Step 4: Simplify right side
    28,242,982.96x = 617,718,457,391,542.38
  5. Step 5: Solve for x
    x = 617,718,457,391,542.38/28,242,982.96
  6. Step 6: Final answer
    x = 21,871,572.78

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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.