Home / 354,620,664.40-531,930,996.60-191,361,989.20

Finding the Fourth Proportional to 354,620,664.40, 531,930,996.60 and 191,361,989.20

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Solution

The fourth proportional to 354,620,664.40, 531,930,996.60 and 191,361,989.20 is: 287,042,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,620,664.40 : 531,930,996.60 = 191,361,989.20 : x
  2. Step 2: Convert to fraction form
    354,620,664.40/531,930,996.60 = 191,361,989.20/x
  3. Step 3: Cross multiply
    354,620,664.40x = 531,930,996.60 × 191,361,989.20
  4. Step 4: Simplify right side
    354,620,664.40x = 101,791,373,626,514,432
  5. Step 5: Solve for x
    x = 101,791,373,626,514,432/354,620,664.40
  6. Step 6: Final answer
    x = 287,042,983.80

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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.