Home / 142,992,736.41-197,324,165.22-81,111,746.37

Finding the Fourth Proportional to 142,992,736.41, 197,324,165.22 and 81,111,746.37

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Solution

The fourth proportional to 142,992,736.41, 197,324,165.22 and 81,111,746.37 is: 111,930,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992,736.41 : 197,324,165.22 = 81,111,746.37 : x
  2. Step 2: Convert to fraction form
    142,992,736.41/197,324,165.22 = 81,111,746.37/x
  3. Step 3: Cross multiply
    142,992,736.41x = 197,324,165.22 × 81,111,746.37
  4. Step 4: Simplify right side
    142,992,736.41x = 16,005,307,642,889,070
  5. Step 5: Solve for x
    x = 16,005,307,642,889,070/142,992,736.41
  6. Step 6: Final answer
    x = 111,930,913.73

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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.