Home / 40,088,642.28-55,322,475.78-21,753,931.56

Finding the Fourth Proportional to 40,088,642.28, 55,322,475.78 and 21,753,931.56

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Solution

The fourth proportional to 40,088,642.28, 55,322,475.78 and 21,753,931.56 is: 30,020,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,088,642.28 : 55,322,475.78 = 21,753,931.56 : x
  2. Step 2: Convert to fraction form
    40,088,642.28/55,322,475.78 = 21,753,931.56/x
  3. Step 3: Cross multiply
    40,088,642.28x = 55,322,475.78 × 21,753,931.56
  4. Step 4: Simplify right side
    40,088,642.28x = 1,203,481,351,847,877.50
  5. Step 5: Solve for x
    x = 1,203,481,351,847,877.50/40,088,642.28
  6. Step 6: Final answer
    x = 30,020,506.64

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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.