Home / 137,096,479.11-189,193,141.17-78,360,405.37

Finding the Fourth Proportional to 137,096,479.11, 189,193,141.17 and 78,360,405.37

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Solution

The fourth proportional to 137,096,479.11, 189,193,141.17 and 78,360,405.37 is: 108,137,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,096,479.11 : 189,193,141.17 = 78,360,405.37 : x
  2. Step 2: Convert to fraction form
    137,096,479.11/189,193,141.17 = 78,360,405.37/x
  3. Step 3: Cross multiply
    137,096,479.11x = 189,193,141.17 × 78,360,405.37
  4. Step 4: Simplify right side
    137,096,479.11x = 14,825,251,233,967,066
  5. Step 5: Solve for x
    x = 14,825,251,233,967,066/137,096,479.11
  6. Step 6: Final answer
    x = 108,137,359.40

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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.