Home / 143,400,502,382.91-197,910,046,212.92-81,616,094,019.09

Finding the Fourth Proportional to 143,400,502,382.91, 197,910,046,212.92 and 81,616,094,019.09

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Solution

The fourth proportional to 143,400,502,382.91, 197,910,046,212.92 and 81,616,094,019.09 is: 112,640,086,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,502,382.91 : 197,910,046,212.92 = 81,616,094,019.09 : x
  2. Step 2: Convert to fraction form
    143,400,502,382.91/197,910,046,212.92 = 81,616,094,019.09/x
  3. Step 3: Cross multiply
    143,400,502,382.91x = 197,910,046,212.92 × 81,616,094,019.09
  4. Step 4: Simplify right side
    143,400,502,382.91x = 16,152,644,939,036,126,871,552
  5. Step 5: Solve for x
    x = 16,152,644,939,036,126,871,552/143,400,502,382.91
  6. Step 6: Final answer
    x = 112,640,086,126.79

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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.