Home / 140,790,991.80-194,291,987.18-78,071,508.26

Finding the Fourth Proportional to 140,790,991.80, 194,291,987.18 and 78,071,508.26

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Solution

The fourth proportional to 140,790,991.80, 194,291,987.18 and 78,071,508.26 is: 107,738,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,790,991.80 : 194,291,987.18 = 78,071,508.26 : x
  2. Step 2: Convert to fraction form
    140,790,991.80/194,291,987.18 = 78,071,508.26/x
  3. Step 3: Cross multiply
    140,790,991.80x = 194,291,987.18 × 78,071,508.26
  4. Step 4: Simplify right side
    140,790,991.80x = 15,168,668,481,975,186
  5. Step 5: Solve for x
    x = 15,168,668,481,975,186/140,790,991.80
  6. Step 6: Final answer
    x = 107,738,913.46

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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.