Home / 31,161,666.43-42,980,797.26-21,871,309.57

Finding the Fourth Proportional to 31,161,666.43, 42,980,797.26 and 21,871,309.57

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Solution

The fourth proportional to 31,161,666.43, 42,980,797.26 and 21,871,309.57 is: 30,166,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161,666.43 : 42,980,797.26 = 21,871,309.57 : x
  2. Step 2: Convert to fraction form
    31,161,666.43/42,980,797.26 = 21,871,309.57/x
  3. Step 3: Cross multiply
    31,161,666.43x = 42,980,797.26 × 21,871,309.57
  4. Step 4: Simplify right side
    31,161,666.43x = 940,046,322,331,415.75
  5. Step 5: Solve for x
    x = 940,046,322,331,415.75/31,161,666.43
  6. Step 6: Final answer
    x = 30,166,753.90

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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.