Home / 217,121,123.10-325,681,684.65-194,162,871.90

Finding the Fourth Proportional to 217,121,123.10, 325,681,684.65 and 194,162,871.90

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Solution

The fourth proportional to 217,121,123.10, 325,681,684.65 and 194,162,871.90 is: 291,244,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,121,123.10 : 325,681,684.65 = 194,162,871.90 : x
  2. Step 2: Convert to fraction form
    217,121,123.10/325,681,684.65 = 194,162,871.90/x
  3. Step 3: Cross multiply
    217,121,123.10x = 325,681,684.65 × 194,162,871.90
  4. Step 4: Simplify right side
    217,121,123.10x = 63,235,291,216,874,144
  5. Step 5: Solve for x
    x = 63,235,291,216,874,144/217,121,123.10
  6. Step 6: Final answer
    x = 291,244,307.85

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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.