Home / 319,429,120.31-440,816,469.07-180,199,451.51

Finding the Fourth Proportional to 319,429,120.31, 440,816,469.07 and 180,199,451.51

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Solution

The fourth proportional to 319,429,120.31, 440,816,469.07 and 180,199,451.51 is: 248,677,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,429,120.31 : 440,816,469.07 = 180,199,451.51 : x
  2. Step 2: Convert to fraction form
    319,429,120.31/440,816,469.07 = 180,199,451.51/x
  3. Step 3: Cross multiply
    319,429,120.31x = 440,816,469.07 × 180,199,451.51
  4. Step 4: Simplify right side
    319,429,120.31x = 79,434,885,943,640,416
  5. Step 5: Solve for x
    x = 79,434,885,943,640,416/319,429,120.31
  6. Step 6: Final answer
    x = 248,677,659.28

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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.