Home / 21,912,422.22-30,220,503.30-13,208,774.58

Finding the Fourth Proportional to 21,912,422.22, 30,220,503.30 and 13,208,774.58

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Solution

The fourth proportional to 21,912,422.22, 30,220,503.30 and 13,208,774.58 is: 18,216,873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912,422.22 : 30,220,503.30 = 13,208,774.58 : x
  2. Step 2: Convert to fraction form
    21,912,422.22/30,220,503.30 = 13,208,774.58/x
  3. Step 3: Cross multiply
    21,912,422.22x = 30,220,503.30 × 13,208,774.58
  4. Step 4: Simplify right side
    21,912,422.22x = 399,175,815,783,846.12
  5. Step 5: Solve for x
    x = 399,175,815,783,846.12/21,912,422.22
  6. Step 6: Final answer
    x = 18,216,873.14

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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.