Home / 21,022,100.98-29,005,009.26-12,315,593.23

Finding the Fourth Proportional to 21,022,100.98, 29,005,009.26 and 12,315,593.23

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Solution

The fourth proportional to 21,022,100.98, 29,005,009.26 and 12,315,593.23 is: 16,992,302.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,100.98 : 29,005,009.26 = 12,315,593.23 : x
  2. Step 2: Convert to fraction form
    21,022,100.98/29,005,009.26 = 12,315,593.23/x
  3. Step 3: Cross multiply
    21,022,100.98x = 29,005,009.26 × 12,315,593.23
  4. Step 4: Simplify right side
    21,022,100.98x = 357,213,895,678,543.31
  5. Step 5: Solve for x
    x = 357,213,895,678,543.31/21,022,100.98
  6. Step 6: Final answer
    x = 16,992,302.34

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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.