Home / 217,736,886.32-326,491,923-102,690,538.64

Finding the Fourth Proportional to 217,736,886.32, 326,491,923 and 102,690,538.64

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Solution

The fourth proportional to 217,736,886.32, 326,491,923 and 102,690,538.64 is: 153,982,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,736,886.32 : 326,491,923 = 102,690,538.64 : x
  2. Step 2: Convert to fraction form
    217,736,886.32/326,491,923 = 102,690,538.64/x
  3. Step 3: Cross multiply
    217,736,886.32x = 326,491,923 × 102,690,538.64
  4. Step 4: Simplify right side
    217,736,886.32x = 33,527,631,434,479,404
  5. Step 5: Solve for x
    x = 33,527,631,434,479,404/217,736,886.32
  6. Step 6: Final answer
    x = 153,982,322.43

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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.