Home / 143,400,461,991.54-197,909,990,974.24-81,616,054,456.96

Finding the Fourth Proportional to 143,400,461,991.54, 197,909,990,974.24 and 81,616,054,456.96

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Solution

The fourth proportional to 143,400,461,991.54, 197,909,990,974.24 and 81,616,054,456.96 is: 112,640,031,814.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,461,991.54 : 197,909,990,974.24 = 81,616,054,456.96 : x
  2. Step 2: Convert to fraction form
    143,400,461,991.54/197,909,990,974.24 = 81,616,054,456.96/x
  3. Step 3: Cross multiply
    143,400,461,991.54x = 197,909,990,974.24 × 81,616,054,456.96
  4. Step 4: Simplify right side
    143,400,461,991.54x = 16,152,632,600,930,033,860,608
  5. Step 5: Solve for x
    x = 16,152,632,600,930,033,860,608/143,400,461,991.54
  6. Step 6: Final answer
    x = 112,640,031,814.42

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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.