Home / 21,206,173.35-29,266,894.44-12,838,155.48

Finding the Fourth Proportional to 21,206,173.35, 29,266,894.44 and 12,838,155.48

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Solution

The fourth proportional to 21,206,173.35, 29,266,894.44 and 12,838,155.48 is: 17,718,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206,173.35 : 29,266,894.44 = 12,838,155.48 : x
  2. Step 2: Convert to fraction form
    21,206,173.35/29,266,894.44 = 12,838,155.48/x
  3. Step 3: Cross multiply
    21,206,173.35x = 29,266,894.44 × 12,838,155.48
  4. Step 4: Simplify right side
    21,206,173.35x = 375,732,941,237,467.56
  5. Step 5: Solve for x
    x = 375,732,941,237,467.56/21,206,173.35
  6. Step 6: Final answer
    x = 17,718,092.51

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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.