Home / 15,772,147.72-21,767,742.42-9,247,383.88

Finding the Fourth Proportional to 15,772,147.72, 21,767,742.42 and 9,247,383.88

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Solution

The fourth proportional to 15,772,147.72, 21,767,742.42 and 9,247,383.88 is: 12,762,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772,147.72 : 21,767,742.42 = 9,247,383.88 : x
  2. Step 2: Convert to fraction form
    15,772,147.72/21,767,742.42 = 9,247,383.88/x
  3. Step 3: Cross multiply
    15,772,147.72x = 21,767,742.42 × 9,247,383.88
  4. Step 4: Simplify right side
    15,772,147.72x = 201,294,670,358,700.22
  5. Step 5: Solve for x
    x = 201,294,670,358,700.22/15,772,147.72
  6. Step 6: Final answer
    x = 12,762,667.07

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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.