Home / 509,959,399.56-765,095,211.44-261,140,829.77

Finding the Fourth Proportional to 509,959,399.56, 765,095,211.44 and 261,140,829.77

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Solution

The fourth proportional to 509,959,399.56, 765,095,211.44 and 261,140,829.77 is: 391,791,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,959,399.56 : 765,095,211.44 = 261,140,829.77 : x
  2. Step 2: Convert to fraction form
    509,959,399.56/765,095,211.44 = 261,140,829.77/x
  3. Step 3: Cross multiply
    509,959,399.56x = 765,095,211.44 × 261,140,829.77
  4. Step 4: Simplify right side
    509,959,399.56x = 199,797,598,363,364,000
  5. Step 5: Solve for x
    x = 199,797,598,363,364,000/509,959,399.56
  6. Step 6: Final answer
    x = 391,791,186.78

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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.