Home / 281,235,445.22-388,108,018.60-155,789,562.62

Finding the Fourth Proportional to 281,235,445.22, 388,108,018.60 and 155,789,562.62

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Solution

The fourth proportional to 281,235,445.22, 388,108,018.60 and 155,789,562.62 is: 214,991,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,235,445.22 : 388,108,018.60 = 155,789,562.62 : x
  2. Step 2: Convert to fraction form
    281,235,445.22/388,108,018.60 = 155,789,562.62/x
  3. Step 3: Cross multiply
    281,235,445.22x = 388,108,018.60 × 155,789,562.62
  4. Step 4: Simplify right side
    281,235,445.22x = 60,463,178,464,678,816
  5. Step 5: Solve for x
    x = 60,463,178,464,678,816/281,235,445.22
  6. Step 6: Final answer
    x = 214,991,315.97

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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.