Home / 754,216,939.02-1,040,229,738.19-489,984,067.40

Finding the Fourth Proportional to 754,216,939.02, 1,040,229,738.19 and 489,984,067.40

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Solution

The fourth proportional to 754,216,939.02, 1,040,229,738.19 and 489,984,067.40 is: 675,794,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,216,939.02 : 1,040,229,738.19 = 489,984,067.40 : x
  2. Step 2: Convert to fraction form
    754,216,939.02/1,040,229,738.19 = 489,984,067.40/x
  3. Step 3: Cross multiply
    754,216,939.02x = 1,040,229,738.19 × 489,984,067.40
  4. Step 4: Simplify right side
    754,216,939.02x = 509,695,998,144,947,776
  5. Step 5: Solve for x
    x = 509,695,998,144,947,776/754,216,939.02
  6. Step 6: Final answer
    x = 675,794,949.41

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1.5x scale

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.