Home / 39,720,889.19-54,839,282.22-31,494,182.51

Finding the Fourth Proportional to 39,720,889.19, 54,839,282.22 and 31,494,182.51

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Solution

The fourth proportional to 39,720,889.19, 54,839,282.22 and 31,494,182.51 is: 43,481,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720,889.19 : 54,839,282.22 = 31,494,182.51 : x
  2. Step 2: Convert to fraction form
    39,720,889.19/54,839,282.22 = 31,494,182.51/x
  3. Step 3: Cross multiply
    39,720,889.19x = 54,839,282.22 × 31,494,182.51
  4. Step 4: Simplify right side
    39,720,889.19x = 1,727,118,362,679,881.50
  5. Step 5: Solve for x
    x = 1,727,118,362,679,881.50/39,720,889.19
  6. Step 6: Final answer
    x = 43,481,362.03

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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.