Home / 220,912,821.86-304,860,030.09-123,125,578.34

Finding the Fourth Proportional to 220,912,821.86, 304,860,030.09 and 123,125,578.34

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Solution

The fourth proportional to 220,912,821.86, 304,860,030.09 and 123,125,578.34 is: 169,913,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,912,821.86 : 304,860,030.09 = 123,125,578.34 : x
  2. Step 2: Convert to fraction form
    220,912,821.86/304,860,030.09 = 123,125,578.34/x
  3. Step 3: Cross multiply
    220,912,821.86x = 304,860,030.09 × 123,125,578.34
  4. Step 4: Simplify right side
    220,912,821.86x = 37,536,067,517,581,048
  5. Step 5: Solve for x
    x = 37,536,067,517,581,048/220,912,821.86
  6. Step 6: Final answer
    x = 169,913,485.34

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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.