Home / 407,877,794.91-611,936,079.92-131,523,451.18

Finding the Fourth Proportional to 407,877,794.91, 611,936,079.92 and 131,523,451.18

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Solution

The fourth proportional to 407,877,794.91, 611,936,079.92 and 131,523,451.18 is: 197,323,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,877,794.91 : 611,936,079.92 = 131,523,451.18 : x
  2. Step 2: Convert to fraction form
    407,877,794.91/611,936,079.92 = 131,523,451.18/x
  3. Step 3: Cross multiply
    407,877,794.91x = 611,936,079.92 × 131,523,451.18
  4. Step 4: Simplify right side
    407,877,794.91x = 80,483,945,132,967,520
  5. Step 5: Solve for x
    x = 80,483,945,132,967,520/407,877,794.91
  6. Step 6: Final answer
    x = 197,323,674.24

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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.