Home / 15,351,305.28-21,185,131.36-8,476,221.76

Finding the Fourth Proportional to 15,351,305.28, 21,185,131.36 and 8,476,221.76

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Solution

The fourth proportional to 15,351,305.28, 21,185,131.36 and 8,476,221.76 is: 11,697,368.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351,305.28 : 21,185,131.36 = 8,476,221.76 : x
  2. Step 2: Convert to fraction form
    15,351,305.28/21,185,131.36 = 8,476,221.76/x
  3. Step 3: Cross multiply
    15,351,305.28x = 21,185,131.36 × 8,476,221.76
  4. Step 4: Simplify right side
    15,351,305.28x = 179,569,871,422,090.38
  5. Step 5: Solve for x
    x = 179,569,871,422,090.38/15,351,305.28
  6. Step 6: Final answer
    x = 11,697,368.28

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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.