Home / 21,320,386-29,422,133.80-11,530,827.44

Finding the Fourth Proportional to 21,320,386, 29,422,133.80 and 11,530,827.44

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Solution

The fourth proportional to 21,320,386, 29,422,133.80 and 11,530,827.44 is: 15,912,542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,386 : 29,422,133.80 = 11,530,827.44 : x
  2. Step 2: Convert to fraction form
    21,320,386/29,422,133.80 = 11,530,827.44/x
  3. Step 3: Cross multiply
    21,320,386x = 29,422,133.80 × 11,530,827.44
  4. Step 4: Simplify right side
    21,320,386x = 339,261,547,764,391.44
  5. Step 5: Solve for x
    x = 339,261,547,764,391.44/21,320,386
  6. Step 6: Final answer
    x = 15,912,542.47

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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.