Home / 21,008,725.40-31,495,592.10-8,887,496.60

Finding the Fourth Proportional to 21,008,725.40, 31,495,592.10 and 8,887,496.60

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Solution

The fourth proportional to 21,008,725.40, 31,495,592.10 and 8,887,496.60 is: 13,323,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,725.40 : 31,495,592.10 = 8,887,496.60 : x
  2. Step 2: Convert to fraction form
    21,008,725.40/31,495,592.10 = 8,887,496.60/x
  3. Step 3: Cross multiply
    21,008,725.40x = 31,495,592.10 × 8,887,496.60
  4. Step 4: Simplify right side
    21,008,725.40x = 279,916,967,703,736.88
  5. Step 5: Solve for x
    x = 279,916,967,703,736.88/21,008,725.40
  6. Step 6: Final answer
    x = 13,323,843.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.