Home / 755,271,512.89-1,133,028,337.10-318,636,512.73

Finding the Fourth Proportional to 755,271,512.89, 1,133,028,337.10 and 318,636,512.73

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Solution

The fourth proportional to 755,271,512.89, 1,133,028,337.10 and 318,636,512.73 is: 478,005,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,271,512.89 : 1,133,028,337.10 = 318,636,512.73 : x
  2. Step 2: Convert to fraction form
    755,271,512.89/1,133,028,337.10 = 318,636,512.73/x
  3. Step 3: Cross multiply
    755,271,512.89x = 1,133,028,337.10 × 318,636,512.73
  4. Step 4: Simplify right side
    755,271,512.89x = 361,024,198,156,221,760
  5. Step 5: Solve for x
    x = 361,024,198,156,221,760/755,271,512.89
  6. Step 6: Final answer
    x = 478,005,845.57

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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.