Home / 354,375,516.40-531,563,274.60-217,617,449.20

Finding the Fourth Proportional to 354,375,516.40, 531,563,274.60 and 217,617,449.20

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Solution

The fourth proportional to 354,375,516.40, 531,563,274.60 and 217,617,449.20 is: 326,426,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,375,516.40 : 531,563,274.60 = 217,617,449.20 : x
  2. Step 2: Convert to fraction form
    354,375,516.40/531,563,274.60 = 217,617,449.20/x
  3. Step 3: Cross multiply
    354,375,516.40x = 531,563,274.60 × 217,617,449.20
  4. Step 4: Simplify right side
    354,375,516.40x = 115,677,443,906,851,152
  5. Step 5: Solve for x
    x = 115,677,443,906,851,152/354,375,516.40
  6. Step 6: Final answer
    x = 326,426,173.80

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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.