Home / 679,018,844.31-1,018,923,525.76-285,517,194.04

Finding the Fourth Proportional to 679,018,844.31, 1,018,923,525.76 and 285,517,194.04

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Solution

The fourth proportional to 679,018,844.31, 1,018,923,525.76 and 285,517,194.04 is: 428,441,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,018,844.31 : 1,018,923,525.76 = 285,517,194.04 : x
  2. Step 2: Convert to fraction form
    679,018,844.31/1,018,923,525.76 = 285,517,194.04/x
  3. Step 3: Cross multiply
    679,018,844.31x = 1,018,923,525.76 × 285,517,194.04
  4. Step 4: Simplify right side
    679,018,844.31x = 290,920,186,019,697,728
  5. Step 5: Solve for x
    x = 290,920,186,019,697,728/679,018,844.31
  6. Step 6: Final answer
    x = 428,441,991.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.