Home / 143,068,520.52-197,423,301.78-81,188,858.88

Finding the Fourth Proportional to 143,068,520.52, 197,423,301.78 and 81,188,858.88

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Solution

The fourth proportional to 143,068,520.52, 197,423,301.78 and 81,188,858.88 is: 112,034,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068,520.52 : 197,423,301.78 = 81,188,858.88 : x
  2. Step 2: Convert to fraction form
    143,068,520.52/197,423,301.78 = 81,188,858.88/x
  3. Step 3: Cross multiply
    143,068,520.52x = 197,423,301.78 × 81,188,858.88
  4. Step 4: Simplify right side
    143,068,520.52x = 16,028,572,587,840,072
  5. Step 5: Solve for x
    x = 16,028,572,587,840,072/143,068,520.52
  6. Step 6: Final answer
    x = 112,034,237.37

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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.