Home / 818,404,763.60-1,227,607,145.40-491,887,413.20

Finding the Fourth Proportional to 818,404,763.60, 1,227,607,145.40 and 491,887,413.20

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Solution

The fourth proportional to 818,404,763.60, 1,227,607,145.40 and 491,887,413.20 is: 737,831,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,404,763.60 : 1,227,607,145.40 = 491,887,413.20 : x
  2. Step 2: Convert to fraction form
    818,404,763.60/1,227,607,145.40 = 491,887,413.20/x
  3. Step 3: Cross multiply
    818,404,763.60x = 1,227,607,145.40 × 491,887,413.20
  4. Step 4: Simplify right side
    818,404,763.60x = 603,844,503,176,642,304
  5. Step 5: Solve for x
    x = 603,844,503,176,642,304/818,404,763.60
  6. Step 6: Final answer
    x = 737,831,119.80

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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.