Home / 39,720,888.69-54,839,281.53-31,494,182.01

Finding the Fourth Proportional to 39,720,888.69, 54,839,281.53 and 31,494,182.01

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Solution

The fourth proportional to 39,720,888.69, 54,839,281.53 and 31,494,182.01 is: 43,481,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720,888.69 : 54,839,281.53 = 31,494,182.01 : x
  2. Step 2: Convert to fraction form
    39,720,888.69/54,839,281.53 = 31,494,182.01/x
  3. Step 3: Cross multiply
    39,720,888.69x = 54,839,281.53 × 31,494,182.01
  4. Step 4: Simplify right side
    39,720,888.69x = 1,727,118,313,803,451.50
  5. Step 5: Solve for x
    x = 1,727,118,313,803,451.50/39,720,888.69
  6. Step 6: Final answer
    x = 43,481,361.34

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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.