Home / 407,877,795.66-611,936,081.05-131,523,451.93

Finding the Fourth Proportional to 407,877,795.66, 611,936,081.05 and 131,523,451.93

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Solution

The fourth proportional to 407,877,795.66, 611,936,081.05 and 131,523,451.93 is: 197,323,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,877,795.66 : 611,936,081.05 = 131,523,451.93 : x
  2. Step 2: Convert to fraction form
    407,877,795.66/611,936,081.05 = 131,523,451.93/x
  3. Step 3: Cross multiply
    407,877,795.66x = 611,936,081.05 × 131,523,451.93
  4. Step 4: Simplify right side
    407,877,795.66x = 80,483,945,740,212,256
  5. Step 5: Solve for x
    x = 80,483,945,740,212,256/407,877,795.66
  6. Step 6: Final answer
    x = 197,323,675.37

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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.