Home / 782,925,576.66-1,080,476,081.38-485,663,596.57

Finding the Fourth Proportional to 782,925,576.66, 1,080,476,081.38 and 485,663,596.57

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Solution

The fourth proportional to 782,925,576.66, 1,080,476,081.38 and 485,663,596.57 is: 670,239,822.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,925,576.66 : 1,080,476,081.38 = 485,663,596.57 : x
  2. Step 2: Convert to fraction form
    782,925,576.66/1,080,476,081.38 = 485,663,596.57/x
  3. Step 3: Cross multiply
    782,925,576.66x = 1,080,476,081.38 × 485,663,596.57
  4. Step 4: Simplify right side
    782,925,576.66x = 524,747,899,692,804,288
  5. Step 5: Solve for x
    x = 524,747,899,692,804,288/782,925,576.66
  6. Step 6: Final answer
    x = 670,239,822.71

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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.