Home / 138,222,509.86-190,745,930.02-75,498,647.82

Finding the Fourth Proportional to 138,222,509.86, 190,745,930.02 and 75,498,647.82

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Solution

The fourth proportional to 138,222,509.86, 190,745,930.02 and 75,498,647.82 is: 104,187,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,222,509.86 : 190,745,930.02 = 75,498,647.82 : x
  2. Step 2: Convert to fraction form
    138,222,509.86/190,745,930.02 = 75,498,647.82/x
  3. Step 3: Cross multiply
    138,222,509.86x = 190,745,930.02 × 75,498,647.82
  4. Step 4: Simplify right side
    138,222,509.86x = 14,401,059,792,724,616
  5. Step 5: Solve for x
    x = 14,401,059,792,724,616/138,222,509.86
  6. Step 6: Final answer
    x = 104,187,514.81

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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.