Home / 143,068,614.75-197,423,432.19-81,188,953.11

Finding the Fourth Proportional to 143,068,614.75, 197,423,432.19 and 81,188,953.11

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Solution

The fourth proportional to 143,068,614.75, 197,423,432.19 and 81,188,953.11 is: 112,034,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068,614.75 : 197,423,432.19 = 81,188,953.11 : x
  2. Step 2: Convert to fraction form
    143,068,614.75/197,423,432.19 = 81,188,953.11/x
  3. Step 3: Cross multiply
    143,068,614.75x = 197,423,432.19 × 81,188,953.11
  4. Step 4: Simplify right side
    143,068,614.75x = 16,028,601,778,889,174
  5. Step 5: Solve for x
    x = 16,028,601,778,889,174/143,068,614.75
  6. Step 6: Final answer
    x = 112,034,367.61

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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.