Home / 21,912,423.22-30,220,504.68-13,208,775.58

Finding the Fourth Proportional to 21,912,423.22, 30,220,504.68 and 13,208,775.58

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Solution

The fourth proportional to 21,912,423.22, 30,220,504.68 and 13,208,775.58 is: 18,216,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912,423.22 : 30,220,504.68 = 13,208,775.58 : x
  2. Step 2: Convert to fraction form
    21,912,423.22/30,220,504.68 = 13,208,775.58/x
  3. Step 3: Cross multiply
    21,912,423.22x = 30,220,504.68 × 13,208,775.58
  4. Step 4: Simplify right side
    21,912,423.22x = 399,175,864,232,459.69
  5. Step 5: Solve for x
    x = 399,175,864,232,459.69/21,912,423.22
  6. Step 6: Final answer
    x = 18,216,874.52

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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.