Home / 874,579,423.20-1,312,373,019.60-329,711,992.80

Finding the Fourth Proportional to 874,579,423.20, 1,312,373,019.60 and 329,711,992.80

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Solution

The fourth proportional to 874,579,423.20, 1,312,373,019.60 and 329,711,992.80 is: 494,757,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,579,423.20 : 1,312,373,019.60 = 329,711,992.80 : x
  2. Step 2: Convert to fraction form
    874,579,423.20/1,312,373,019.60 = 329,711,992.80/x
  3. Step 3: Cross multiply
    874,579,423.20x = 1,312,373,019.60 × 329,711,992.80
  4. Step 4: Simplify right side
    874,579,423.20x = 432,705,123,589,269,440
  5. Step 5: Solve for x
    x = 432,705,123,589,269,440/874,579,423.20
  6. Step 6: Final answer
    x = 494,757,951.21

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Double scale
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1.5x scale

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.