Home / 20,906,889,502.06-28,851,142,660.59-11,391,520,015.90

Finding the Fourth Proportional to 20,906,889,502.06, 28,851,142,660.59 and 11,391,520,015.90

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Solution

The fourth proportional to 20,906,889,502.06, 28,851,142,660.59 and 11,391,520,015.90 is: 15,720,098,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906,889,502.06 : 28,851,142,660.59 = 11,391,520,015.90 : x
  2. Step 2: Convert to fraction form
    20,906,889,502.06/28,851,142,660.59 = 11,391,520,015.90/x
  3. Step 3: Cross multiply
    20,906,889,502.06x = 28,851,142,660.59 × 11,391,520,015.90
  4. Step 4: Simplify right side
    20,906,889,502.06x = 328,658,369,099,697,356,800
  5. Step 5: Solve for x
    x = 328,658,369,099,697,356,800/20,906,889,502.06
  6. Step 6: Final answer
    x = 15,720,098,825.19

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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.