Home / 354,294,667.80-531,442,001.70-281,115,242.10

Finding the Fourth Proportional to 354,294,667.80, 531,442,001.70 and 281,115,242.10

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Solution

The fourth proportional to 354,294,667.80, 531,442,001.70 and 281,115,242.10 is: 421,672,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,667.80 : 531,442,001.70 = 281,115,242.10 : x
  2. Step 2: Convert to fraction form
    354,294,667.80/531,442,001.70 = 281,115,242.10/x
  3. Step 3: Cross multiply
    354,294,667.80x = 531,442,001.70 × 281,115,242.10
  4. Step 4: Simplify right side
    354,294,667.80x = 149,396,446,970,004,128
  5. Step 5: Solve for x
    x = 149,396,446,970,004,128/354,294,667.80
  6. Step 6: Final answer
    x = 421,672,863.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.