Home / 520,440,221.39-780,583,542.66-151,876,213.85

Finding the Fourth Proportional to 520,440,221.39, 780,583,542.66 and 151,876,213.85

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Solution

The fourth proportional to 520,440,221.39, 780,583,542.66 and 151,876,213.85 is: 227,791,911.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,440,221.39 : 780,583,542.66 = 151,876,213.85 : x
  2. Step 2: Convert to fraction form
    520,440,221.39/780,583,542.66 = 151,876,213.85/x
  3. Step 3: Cross multiply
    520,440,221.39x = 780,583,542.66 × 151,876,213.85
  4. Step 4: Simplify right side
    520,440,221.39x = 118,552,073,054,772,208
  5. Step 5: Solve for x
    x = 118,552,073,054,772,208/520,440,221.39
  6. Step 6: Final answer
    x = 227,791,911.89

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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.