Home / 874,579,428.20-1,312,373,027.10-329,711,997.80

Finding the Fourth Proportional to 874,579,428.20, 1,312,373,027.10 and 329,711,997.80

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Solution

The fourth proportional to 874,579,428.20, 1,312,373,027.10 and 329,711,997.80 is: 494,757,958.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,579,428.20 : 1,312,373,027.10 = 329,711,997.80 : x
  2. Step 2: Convert to fraction form
    874,579,428.20/1,312,373,027.10 = 329,711,997.80/x
  3. Step 3: Cross multiply
    874,579,428.20x = 1,312,373,027.10 × 329,711,997.80
  4. Step 4: Simplify right side
    874,579,428.20x = 432,705,132,623,974,528
  5. Step 5: Solve for x
    x = 432,705,132,623,974,528/874,579,428.20
  6. Step 6: Final answer
    x = 494,757,958.71

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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.