Home / 21,354,442.40-29,472,062.48-13,093,043.36

Finding the Fourth Proportional to 21,354,442.40, 29,472,062.48 and 13,093,043.36

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Solution

The fourth proportional to 21,354,442.40, 29,472,062.48 and 13,093,043.36 is: 18,070,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354,442.40 : 29,472,062.48 = 13,093,043.36 : x
  2. Step 2: Convert to fraction form
    21,354,442.40/29,472,062.48 = 13,093,043.36/x
  3. Step 3: Cross multiply
    21,354,442.40x = 29,472,062.48 × 13,093,043.36
  4. Step 4: Simplify right side
    21,354,442.40x = 385,878,991,959,269.12
  5. Step 5: Solve for x
    x = 385,878,991,959,269.12/21,354,442.40
  6. Step 6: Final answer
    x = 18,070,197.51

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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.