Home / 281,235,449.34-388,108,024.29-155,789,566.74

Finding the Fourth Proportional to 281,235,449.34, 388,108,024.29 and 155,789,566.74

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Solution

The fourth proportional to 281,235,449.34, 388,108,024.29 and 155,789,566.74 is: 214,991,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,235,449.34 : 388,108,024.29 = 155,789,566.74 : x
  2. Step 2: Convert to fraction form
    281,235,449.34/388,108,024.29 = 155,789,566.74/x
  3. Step 3: Cross multiply
    281,235,449.34x = 388,108,024.29 × 155,789,566.74
  4. Step 4: Simplify right side
    281,235,449.34x = 60,463,180,952,456,504
  5. Step 5: Solve for x
    x = 60,463,180,952,456,504/281,235,449.34
  6. Step 6: Final answer
    x = 214,991,321.66

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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.