Home / 776,840,752.68-1,072,040,668.79-419,608,527.66

Finding the Fourth Proportional to 776,840,752.68, 1,072,040,668.79 and 419,608,527.66

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Solution

The fourth proportional to 776,840,752.68, 1,072,040,668.79 and 419,608,527.66 is: 579,060,000.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,840,752.68 : 1,072,040,668.79 = 419,608,527.66 : x
  2. Step 2: Convert to fraction form
    776,840,752.68/1,072,040,668.79 = 419,608,527.66/x
  3. Step 3: Cross multiply
    776,840,752.68x = 1,072,040,668.79 × 419,608,527.66
  4. Step 4: Simplify right side
    776,840,752.68x = 449,837,406,620,515,584
  5. Step 5: Solve for x
    x = 449,837,406,620,515,584/776,840,752.68
  6. Step 6: Final answer
    x = 579,060,000.48

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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.