Home / 13,214,383.50-19,820,778.69-7,857,126.06

Finding the Fourth Proportional to 13,214,383.50, 19,820,778.69 and 7,857,126.06

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Solution

The fourth proportional to 13,214,383.50, 19,820,778.69 and 7,857,126.06 is: 11,785,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214,383.50 : 19,820,778.69 = 7,857,126.06 : x
  2. Step 2: Convert to fraction form
    13,214,383.50/19,820,778.69 = 7,857,126.06/x
  3. Step 3: Cross multiply
    13,214,383.50x = 19,820,778.69 × 7,857,126.06
  4. Step 4: Simplify right side
    13,214,383.50x = 155,734,356,774,691.66
  5. Step 5: Solve for x
    x = 155,734,356,774,691.66/13,214,383.50
  6. Step 6: Final answer
    x = 11,785,215.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.