Home / 28,242,977.96-38,972,191.05-15,850,229.01

Finding the Fourth Proportional to 28,242,977.96, 38,972,191.05 and 15,850,229.01

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Solution

The fourth proportional to 28,242,977.96, 38,972,191.05 and 15,850,229.01 is: 21,871,565.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,977.96 : 38,972,191.05 = 15,850,229.01 : x
  2. Step 2: Convert to fraction form
    28,242,977.96/38,972,191.05 = 15,850,229.01/x
  3. Step 3: Cross multiply
    28,242,977.96x = 38,972,191.05 × 15,850,229.01
  4. Step 4: Simplify right side
    28,242,977.96x = 617,718,153,163,972.25
  5. Step 5: Solve for x
    x = 617,718,153,163,972.25/28,242,977.96
  6. Step 6: Final answer
    x = 21,871,565.89

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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.