Home / 84,061,685.97-126,128,942.50-45,154,739.66

Finding the Fourth Proportional to 84,061,685.97, 126,128,942.50 and 45,154,739.66

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Solution

The fourth proportional to 84,061,685.97, 126,128,942.50 and 45,154,739.66 is: 67,751,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,061,685.97 : 126,128,942.50 = 45,154,739.66 : x
  2. Step 2: Convert to fraction form
    84,061,685.97/126,128,942.50 = 45,154,739.66/x
  3. Step 3: Cross multiply
    84,061,685.97x = 126,128,942.50 × 45,154,739.66
  4. Step 4: Simplify right side
    84,061,685.97x = 5,695,319,562,115,450
  5. Step 5: Solve for x
    x = 5,695,319,562,115,450/84,061,685.97
  6. Step 6: Final answer
    x = 67,751,669.46

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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.