Home / 140,698,309.10-194,163,519.30-78,819,083.24

Finding the Fourth Proportional to 140,698,309.10, 194,163,519.30 and 78,819,083.24

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Solution

The fourth proportional to 140,698,309.10, 194,163,519.30 and 78,819,083.24 is: 108,770,252.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,698,309.10 : 194,163,519.30 = 78,819,083.24 : x
  2. Step 2: Convert to fraction form
    140,698,309.10/194,163,519.30 = 78,819,083.24/x
  3. Step 3: Cross multiply
    140,698,309.10x = 194,163,519.30 × 78,819,083.24
  4. Step 4: Simplify right side
    140,698,309.10x = 15,303,790,589,878,046
  5. Step 5: Solve for x
    x = 15,303,790,589,878,046/140,698,309.10
  6. Step 6: Final answer
    x = 108,770,252.38

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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.