Home / 21,671,682-29,906,762.76-11,881,964.88

Finding the Fourth Proportional to 21,671,682, 29,906,762.76 and 11,881,964.88

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Solution

The fourth proportional to 21,671,682, 29,906,762.76 and 11,881,964.88 is: 16,397,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671,682 : 29,906,762.76 = 11,881,964.88 : x
  2. Step 2: Convert to fraction form
    21,671,682/29,906,762.76 = 11,881,964.88/x
  3. Step 3: Cross multiply
    21,671,682x = 29,906,762.76 × 11,881,964.88
  4. Step 4: Simplify right side
    21,671,682x = 355,351,104,788,811.94
  5. Step 5: Solve for x
    x = 355,351,104,788,811.94/21,671,682
  6. Step 6: Final answer
    x = 16,397,024.69

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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.