Home / 21,653,546.88-29,880,752.16-12,360,747.68

Finding the Fourth Proportional to 21,653,546.88, 29,880,752.16 and 12,360,747.68

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Solution

The fourth proportional to 21,653,546.88, 29,880,752.16 and 12,360,747.68 is: 17,057,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,653,546.88 : 29,880,752.16 = 12,360,747.68 : x
  2. Step 2: Convert to fraction form
    21,653,546.88/29,880,752.16 = 12,360,747.68/x
  3. Step 3: Cross multiply
    21,653,546.88x = 29,880,752.16 × 12,360,747.68
  4. Step 4: Simplify right side
    21,653,546.88x = 369,348,437,938,375
  5. Step 5: Solve for x
    x = 369,348,437,938,375/21,653,546.88
  6. Step 6: Final answer
    x = 17,057,179.59

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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.