Home / 219,074,870.55-328,090,644.63-126,764,067.09

Finding the Fourth Proportional to 219,074,870.55, 328,090,644.63 and 126,764,067.09

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Solution

The fourth proportional to 219,074,870.55, 328,090,644.63 and 126,764,067.09 is: 189,844,249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,074,870.55 : 328,090,644.63 = 126,764,067.09 : x
  2. Step 2: Convert to fraction form
    219,074,870.55/328,090,644.63 = 126,764,067.09/x
  3. Step 3: Cross multiply
    219,074,870.55x = 328,090,644.63 × 126,764,067.09
  4. Step 4: Simplify right side
    219,074,870.55x = 41,590,104,487,478,672
  5. Step 5: Solve for x
    x = 41,590,104,487,478,672/219,074,870.55
  6. Step 6: Final answer
    x = 189,844,249.97

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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.