Home / 30,998,060.97-42,783,246.45-20,525,605.98

Finding the Fourth Proportional to 30,998,060.97, 42,783,246.45 and 20,525,605.98

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Solution

The fourth proportional to 30,998,060.97, 42,783,246.45 and 20,525,605.98 is: 28,329,257.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998,060.97 : 42,783,246.45 = 20,525,605.98 : x
  2. Step 2: Convert to fraction form
    30,998,060.97/42,783,246.45 = 20,525,605.98/x
  3. Step 3: Cross multiply
    30,998,060.97x = 42,783,246.45 × 20,525,605.98
  4. Step 4: Simplify right side
    30,998,060.97x = 878,152,059,177,933.88
  5. Step 5: Solve for x
    x = 878,152,059,177,933.88/30,998,060.97
  6. Step 6: Final answer
    x = 28,329,257.76

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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.