Home / 1,386,083,532.11-1,912,889,121.75-783,045,002.66

Finding the Fourth Proportional to 1,386,083,532.11, 1,912,889,121.75 and 783,045,002.66

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Solution

The fourth proportional to 1,386,083,532.11, 1,912,889,121.75 and 783,045,002.66 is: 1,080,655,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,083,532.11 : 1,912,889,121.75 = 783,045,002.66 : x
  2. Step 2: Convert to fraction form
    1,386,083,532.11/1,912,889,121.75 = 783,045,002.66/x
  3. Step 3: Cross multiply
    1,386,083,532.11x = 1,912,889,121.75 × 783,045,002.66
  4. Step 4: Simplify right side
    1,386,083,532.11x = 1,497,878,267,419,449,344
  5. Step 5: Solve for x
    x = 1,497,878,267,419,449,344/1,386,083,532.11
  6. Step 6: Final answer
    x = 1,080,655,121.23

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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.