Home / 354,376,822.40-531,565,233.60-217,618,755.20

Finding the Fourth Proportional to 354,376,822.40, 531,565,233.60 and 217,618,755.20

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Solution

The fourth proportional to 354,376,822.40, 531,565,233.60 and 217,618,755.20 is: 326,428,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,376,822.40 : 531,565,233.60 = 217,618,755.20 : x
  2. Step 2: Convert to fraction form
    354,376,822.40/531,565,233.60 = 217,618,755.20/x
  3. Step 3: Cross multiply
    354,376,822.40x = 531,565,233.60 × 217,618,755.20
  4. Step 4: Simplify right side
    354,376,822.40x = 115,678,564,443,629,216
  5. Step 5: Solve for x
    x = 115,678,564,443,629,216/354,376,822.40
  6. Step 6: Final answer
    x = 326,428,132.80

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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.