Home / 219,405,716.43-302,779,815.80-120,284,335.65

Finding the Fourth Proportional to 219,405,716.43, 302,779,815.80 and 120,284,335.65

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Solution

The fourth proportional to 219,405,716.43, 302,779,815.80 and 120,284,335.65 is: 165,992,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,405,716.43 : 302,779,815.80 = 120,284,335.65 : x
  2. Step 2: Convert to fraction form
    219,405,716.43/302,779,815.80 = 120,284,335.65/x
  3. Step 3: Cross multiply
    219,405,716.43x = 302,779,815.80 × 120,284,335.65
  4. Step 4: Simplify right side
    219,405,716.43x = 36,419,668,992,266,376
  5. Step 5: Solve for x
    x = 36,419,668,992,266,376/219,405,716.43
  6. Step 6: Final answer
    x = 165,992,343.25

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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.