Home / 142,992,646.26-197,324,041.38-81,111,656.22

Finding the Fourth Proportional to 142,992,646.26, 197,324,041.38 and 81,111,656.22

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Solution

The fourth proportional to 142,992,646.26, 197,324,041.38 and 81,111,656.22 is: 111,930,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992,646.26 : 197,324,041.38 = 81,111,656.22 : x
  2. Step 2: Convert to fraction form
    142,992,646.26/197,324,041.38 = 81,111,656.22/x
  3. Step 3: Cross multiply
    142,992,646.26x = 197,324,041.38 × 81,111,656.22
  4. Step 4: Simplify right side
    142,992,646.26x = 16,005,279,808,355,614
  5. Step 5: Solve for x
    x = 16,005,279,808,355,614/142,992,646.26
  6. Step 6: Final answer
    x = 111,930,789.64

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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.