Home / 21,211,797.73-29,271,456.84-12,965,666.89

Finding the Fourth Proportional to 21,211,797.73, 29,271,456.84 and 12,965,666.89

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Solution

The fourth proportional to 21,211,797.73, 29,271,456.84 and 12,965,666.89 is: 17,892,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211,797.73 : 29,271,456.84 = 12,965,666.89 : x
  2. Step 2: Convert to fraction form
    21,211,797.73/29,271,456.84 = 12,965,666.89/x
  3. Step 3: Cross multiply
    21,211,797.73x = 29,271,456.84 × 12,965,666.89
  4. Step 4: Simplify right side
    21,211,797.73x = 379,523,958,772,452.06
  5. Step 5: Solve for x
    x = 379,523,958,772,452.06/21,211,797.73
  6. Step 6: Final answer
    x = 17,892,116.62

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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.