Home / 319,429,120.38-440,816,469.15-180,199,451.58

Finding the Fourth Proportional to 319,429,120.38, 440,816,469.15 and 180,199,451.58

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Solution

The fourth proportional to 319,429,120.38, 440,816,469.15 and 180,199,451.58 is: 248,677,659.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,429,120.38 : 440,816,469.15 = 180,199,451.58 : x
  2. Step 2: Convert to fraction form
    319,429,120.38/440,816,469.15 = 180,199,451.58/x
  3. Step 3: Cross multiply
    319,429,120.38x = 440,816,469.15 × 180,199,451.58
  4. Step 4: Simplify right side
    319,429,120.38x = 79,434,885,988,261,984
  5. Step 5: Solve for x
    x = 79,434,885,988,261,984/319,429,120.38
  6. Step 6: Final answer
    x = 248,677,659.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.