Home / 120,839,341.80-166,778,290.94-71,291,828.91

Finding the Fourth Proportional to 120,839,341.80, 166,778,290.94 and 71,291,828.91

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Solution

The fourth proportional to 120,839,341.80, 166,778,290.94 and 71,291,828.91 is: 98,394,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,839,341.80 : 166,778,290.94 = 71,291,828.91 : x
  2. Step 2: Convert to fraction form
    120,839,341.80/166,778,290.94 = 71,291,828.91/x
  3. Step 3: Cross multiply
    120,839,341.80x = 166,778,290.94 × 71,291,828.91
  4. Step 4: Simplify right side
    120,839,341.80x = 11,889,929,383,865,642
  5. Step 5: Solve for x
    x = 11,889,929,383,865,642/120,839,341.80
  6. Step 6: Final answer
    x = 98,394,522.90

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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.