Home / 138,846,229.10-191,606,734.50-76,121,576.48

Finding the Fourth Proportional to 138,846,229.10, 191,606,734.50 and 76,121,576.48

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Solution

The fourth proportional to 138,846,229.10, 191,606,734.50 and 76,121,576.48 is: 105,047,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,846,229.10 : 191,606,734.50 = 76,121,576.48 : x
  2. Step 2: Convert to fraction form
    138,846,229.10/191,606,734.50 = 76,121,576.48/x
  3. Step 3: Cross multiply
    138,846,229.10x = 191,606,734.50 × 76,121,576.48
  4. Step 4: Simplify right side
    138,846,229.10x = 14,585,406,693,366,770
  5. Step 5: Solve for x
    x = 14,585,406,693,366,770/138,846,229.10
  6. Step 6: Final answer
    x = 105,047,193.49

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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.