Home / 339,982,447.85-509,973,671.78-312,772,668.65

Finding the Fourth Proportional to 339,982,447.85, 509,973,671.78 and 312,772,668.65

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Solution

The fourth proportional to 339,982,447.85, 509,973,671.78 and 312,772,668.65 is: 469,159,002.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,982,447.85 : 509,973,671.78 = 312,772,668.65 : x
  2. Step 2: Convert to fraction form
    339,982,447.85/509,973,671.78 = 312,772,668.65/x
  3. Step 3: Cross multiply
    339,982,447.85x = 509,973,671.78 × 312,772,668.65
  4. Step 4: Simplify right side
    339,982,447.85x = 159,505,826,262,305,920
  5. Step 5: Solve for x
    x = 159,505,826,262,305,920/339,982,447.85
  6. Step 6: Final answer
    x = 469,159,002.98

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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.