Home / 281,235,450.34-388,108,025.67-155,789,567.74

Finding the Fourth Proportional to 281,235,450.34, 388,108,025.67 and 155,789,567.74

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Solution

The fourth proportional to 281,235,450.34, 388,108,025.67 and 155,789,567.74 is: 214,991,323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,235,450.34 : 388,108,025.67 = 155,789,567.74 : x
  2. Step 2: Convert to fraction form
    281,235,450.34/388,108,025.67 = 155,789,567.74/x
  3. Step 3: Cross multiply
    281,235,450.34x = 388,108,025.67 × 155,789,567.74
  4. Step 4: Simplify right side
    281,235,450.34x = 60,463,181,555,554,128
  5. Step 5: Solve for x
    x = 60,463,181,555,554,128/281,235,450.34
  6. Step 6: Final answer
    x = 214,991,323.04

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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.