Home / 281,235,445.84-388,108,019.46-155,789,563.24

Finding the Fourth Proportional to 281,235,445.84, 388,108,019.46 and 155,789,563.24

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Solution

The fourth proportional to 281,235,445.84, 388,108,019.46 and 155,789,563.24 is: 214,991,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,235,445.84 : 388,108,019.46 = 155,789,563.24 : x
  2. Step 2: Convert to fraction form
    281,235,445.84/388,108,019.46 = 155,789,563.24/x
  3. Step 3: Cross multiply
    281,235,445.84x = 388,108,019.46 × 155,789,563.24
  4. Step 4: Simplify right side
    281,235,445.84x = 60,463,178,841,614,824
  5. Step 5: Solve for x
    x = 60,463,178,841,614,824/281,235,445.84
  6. Step 6: Final answer
    x = 214,991,316.83

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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.