Home / 138,846,230.10-191,606,735.88-76,121,577.48

Finding the Fourth Proportional to 138,846,230.10, 191,606,735.88 and 76,121,577.48

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Solution

The fourth proportional to 138,846,230.10, 191,606,735.88 and 76,121,577.48 is: 105,047,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,846,230.10 : 191,606,735.88 = 76,121,577.48 : x
  2. Step 2: Convert to fraction form
    138,846,230.10/191,606,735.88 = 76,121,577.48/x
  3. Step 3: Cross multiply
    138,846,230.10x = 191,606,735.88 × 76,121,577.48
  4. Step 4: Simplify right side
    138,846,230.10x = 14,585,406,990,979,316
  5. Step 5: Solve for x
    x = 14,585,406,990,979,316/138,846,230.10
  6. Step 6: Final answer
    x = 105,047,194.88

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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.