Home / 519,656,190.46-717,217,942.71-310,835,306.86

Finding the Fourth Proportional to 519,656,190.46, 717,217,942.71 and 310,835,306.86

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Solution

The fourth proportional to 519,656,190.46, 717,217,942.71 and 310,835,306.86 is: 429,007,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,656,190.46 : 717,217,942.71 = 310,835,306.86 : x
  2. Step 2: Convert to fraction form
    519,656,190.46/717,217,942.71 = 310,835,306.86/x
  3. Step 3: Cross multiply
    519,656,190.46x = 717,217,942.71 × 310,835,306.86
  4. Step 4: Simplify right side
    519,656,190.46x = 222,936,659,307,760,768
  5. Step 5: Solve for x
    x = 222,936,659,307,760,768/519,656,190.46
  6. Step 6: Final answer
    x = 429,007,992.98

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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.