Home / 874,579,429.20-1,312,373,028.60-329,711,998.80

Finding the Fourth Proportional to 874,579,429.20, 1,312,373,028.60 and 329,711,998.80

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Solution

The fourth proportional to 874,579,429.20, 1,312,373,028.60 and 329,711,998.80 is: 494,757,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,579,429.20 : 1,312,373,028.60 = 329,711,998.80 : x
  2. Step 2: Convert to fraction form
    874,579,429.20/1,312,373,028.60 = 329,711,998.80/x
  3. Step 3: Cross multiply
    874,579,429.20x = 1,312,373,028.60 × 329,711,998.80
  4. Step 4: Simplify right side
    874,579,429.20x = 432,705,134,430,915,520
  5. Step 5: Solve for x
    x = 432,705,134,430,915,520/874,579,429.20
  6. Step 6: Final answer
    x = 494,757,960.21

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Double scale
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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.