Home / 21,598,156.27-29,804,883.32-12,778,062.49

Finding the Fourth Proportional to 21,598,156.27, 29,804,883.32 and 12,778,062.49

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Solution

The fourth proportional to 21,598,156.27, 29,804,883.32 and 12,778,062.49 is: 17,633,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598,156.27 : 29,804,883.32 = 12,778,062.49 : x
  2. Step 2: Convert to fraction form
    21,598,156.27/29,804,883.32 = 12,778,062.49/x
  3. Step 3: Cross multiply
    21,598,156.27x = 29,804,883.32 × 12,778,062.49
  4. Step 4: Simplify right side
    21,598,156.27x = 380,848,661,639,320
  5. Step 5: Solve for x
    x = 380,848,661,639,320/21,598,156.27
  6. Step 6: Final answer
    x = 17,633,387.63

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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.