Home / 354,294,381.60-531,441,572.40-280,317,794.40

Finding the Fourth Proportional to 354,294,381.60, 531,441,572.40 and 280,317,794.40

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Solution

The fourth proportional to 354,294,381.60, 531,441,572.40 and 280,317,794.40 is: 420,476,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,381.60 : 531,441,572.40 = 280,317,794.40 : x
  2. Step 2: Convert to fraction form
    354,294,381.60/531,441,572.40 = 280,317,794.40/x
  3. Step 3: Cross multiply
    354,294,381.60x = 531,441,572.40 × 280,317,794.40
  4. Step 4: Simplify right side
    354,294,381.60x = 148,972,529,427,635,904
  5. Step 5: Solve for x
    x = 148,972,529,427,635,904/354,294,381.60
  6. Step 6: Final answer
    x = 420,476,691.60

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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.