Home / 39,720,893.19-54,839,287.74-31,494,186.51

Finding the Fourth Proportional to 39,720,893.19, 54,839,287.74 and 31,494,186.51

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Solution

The fourth proportional to 39,720,893.19, 54,839,287.74 and 31,494,186.51 is: 43,481,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720,893.19 : 54,839,287.74 = 31,494,186.51 : x
  2. Step 2: Convert to fraction form
    39,720,893.19/54,839,287.74 = 31,494,186.51/x
  3. Step 3: Cross multiply
    39,720,893.19x = 54,839,287.74 × 31,494,186.51
  4. Step 4: Simplify right side
    39,720,893.19x = 1,727,118,756,159,116.50
  5. Step 5: Solve for x
    x = 1,727,118,756,159,116.50/39,720,893.19
  6. Step 6: Final answer
    x = 43,481,367.55

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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.