Home / 1,018,424,437.94-1,405,438,375.38-616,532,865.18

Finding the Fourth Proportional to 1,018,424,437.94, 1,405,438,375.38 and 616,532,865.18

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Solution

The fourth proportional to 1,018,424,437.94, 1,405,438,375.38 and 616,532,865.18 is: 850,823,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,424,437.94 : 1,405,438,375.38 = 616,532,865.18 : x
  2. Step 2: Convert to fraction form
    1,018,424,437.94/1,405,438,375.38 = 616,532,865.18/x
  3. Step 3: Cross multiply
    1,018,424,437.94x = 1,405,438,375.38 × 616,532,865.18
  4. Step 4: Simplify right side
    1,018,424,437.94x = 866,498,948,405,414,400
  5. Step 5: Solve for x
    x = 866,498,948,405,414,400/1,018,424,437.94
  6. Step 6: Final answer
    x = 850,823,012.62

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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.