Home / 217,831,658.55-326,816,560.77-77,769,110.88

Finding the Fourth Proportional to 217,831,658.55, 326,816,560.77 and 77,769,110.88

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Solution

The fourth proportional to 217,831,658.55, 326,816,560.77 and 77,769,110.88 is: 116,678,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,831,658.55 : 326,816,560.77 = 77,769,110.88 : x
  2. Step 2: Convert to fraction form
    217,831,658.55/326,816,560.77 = 77,769,110.88/x
  3. Step 3: Cross multiply
    217,831,658.55x = 326,816,560.77 × 77,769,110.88
  4. Step 4: Simplify right side
    217,831,658.55x = 25,416,233,351,942,384
  5. Step 5: Solve for x
    x = 25,416,233,351,942,384/217,831,658.55
  6. Step 6: Final answer
    x = 116,678,326.38

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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.