Home / 40,205,921.58-55,484,129.79-21,871,163.34

Finding the Fourth Proportional to 40,205,921.58, 55,484,129.79 and 21,871,163.34

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Solution

The fourth proportional to 40,205,921.58, 55,484,129.79 and 21,871,163.34 is: 30,182,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205,921.58 : 55,484,129.79 = 21,871,163.34 : x
  2. Step 2: Convert to fraction form
    40,205,921.58/55,484,129.79 = 21,871,163.34/x
  3. Step 3: Cross multiply
    40,205,921.58x = 55,484,129.79 × 21,871,163.34
  4. Step 4: Simplify right side
    40,205,921.58x = 1,213,502,465,414,849.75
  5. Step 5: Solve for x
    x = 1,213,502,465,414,849.75/40,205,921.58
  6. Step 6: Final answer
    x = 30,182,182.57

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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.