Home / 281,234,021.78-388,237,528.64-187,304,482.24

Finding the Fourth Proportional to 281,234,021.78, 388,237,528.64 and 187,304,482.24

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Solution

The fourth proportional to 281,234,021.78, 388,237,528.64 and 187,304,482.24 is: 258,569,816.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,234,021.78 : 388,237,528.64 = 187,304,482.24 : x
  2. Step 2: Convert to fraction form
    281,234,021.78/388,237,528.64 = 187,304,482.24/x
  3. Step 3: Cross multiply
    281,234,021.78x = 388,237,528.64 × 187,304,482.24
  4. Step 4: Simplify right side
    281,234,021.78x = 72,718,629,285,174,672
  5. Step 5: Solve for x
    x = 72,718,629,285,174,672/281,234,021.78
  6. Step 6: Final answer
    x = 258,569,816.07

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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.