Home / 631,105,243.80-946,209,968.10-242,778,024.60

Finding the Fourth Proportional to 631,105,243.80, 946,209,968.10 and 242,778,024.60

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Solution

The fourth proportional to 631,105,243.80, 946,209,968.10 and 242,778,024.60 is: 363,994,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,105,243.80 : 946,209,968.10 = 242,778,024.60 : x
  2. Step 2: Convert to fraction form
    631,105,243.80/946,209,968.10 = 242,778,024.60/x
  3. Step 3: Cross multiply
    631,105,243.80x = 946,209,968.10 × 242,778,024.60
  4. Step 4: Simplify right side
    631,105,243.80x = 229,718,986,912,147,008
  5. Step 5: Solve for x
    x = 229,718,986,912,147,008/631,105,243.80
  6. Step 6: Final answer
    x = 363,994,736.49

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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.