Home / 21,279,003.84-29,365,058.07-12,111,646.50

Finding the Fourth Proportional to 21,279,003.84, 29,365,058.07 and 12,111,646.50

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Solution

The fourth proportional to 21,279,003.84, 29,365,058.07 and 12,111,646.50 is: 16,714,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279,003.84 : 29,365,058.07 = 12,111,646.50 : x
  2. Step 2: Convert to fraction form
    21,279,003.84/29,365,058.07 = 12,111,646.50/x
  3. Step 3: Cross multiply
    21,279,003.84x = 29,365,058.07 × 12,111,646.50
  4. Step 4: Simplify right side
    21,279,003.84x = 355,659,202,795,812.25
  5. Step 5: Solve for x
    x = 355,659,202,795,812.25/21,279,003.84
  6. Step 6: Final answer
    x = 16,714,090.82

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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.