Home / 3,978,049,087.43-5,489,713,184.95-2,169,565,328.95

Finding the Fourth Proportional to 3,978,049,087.43, 5,489,713,184.95 and 2,169,565,328.95

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Solution

The fourth proportional to 3,978,049,087.43, 5,489,713,184.95 and 2,169,565,328.95 is: 2,994,003,123.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,049,087.43 : 5,489,713,184.95 = 2,169,565,328.95 : x
  2. Step 2: Convert to fraction form
    3,978,049,087.43/5,489,713,184.95 = 2,169,565,328.95/x
  3. Step 3: Cross multiply
    3,978,049,087.43x = 5,489,713,184.95 × 2,169,565,328.95
  4. Step 4: Simplify right side
    3,978,049,087.43x = 11,910,291,391,935,645,696
  5. Step 5: Solve for x
    x = 11,910,291,391,935,645,696/3,978,049,087.43
  6. Step 6: Final answer
    x = 2,994,003,123.18

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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.