Home / 77,987,542.25-116,795,637.41-45,128,842.89

Finding the Fourth Proportional to 77,987,542.25, 116,795,637.41 and 45,128,842.89

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Solution

The fourth proportional to 77,987,542.25, 116,795,637.41 and 45,128,842.89 is: 67,585,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,987,542.25 : 116,795,637.41 = 45,128,842.89 : x
  2. Step 2: Convert to fraction form
    77,987,542.25/116,795,637.41 = 45,128,842.89/x
  3. Step 3: Cross multiply
    77,987,542.25x = 116,795,637.41 × 45,128,842.89
  4. Step 4: Simplify right side
    77,987,542.25x = 5,270,851,970,687,652
  5. Step 5: Solve for x
    x = 5,270,851,970,687,652/77,987,542.25
  6. Step 6: Final answer
    x = 67,585,819.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.