Home / 21,985,010.20-33,009,008.10-12,419,072.20

Finding the Fourth Proportional to 21,985,010.20, 33,009,008.10 and 12,419,072.20

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Solution

The fourth proportional to 21,985,010.20, 33,009,008.10 and 12,419,072.20 is: 18,646,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985,010.20 : 33,009,008.10 = 12,419,072.20 : x
  2. Step 2: Convert to fraction form
    21,985,010.20/33,009,008.10 = 12,419,072.20/x
  3. Step 3: Cross multiply
    21,985,010.20x = 33,009,008.10 × 12,419,072.20
  4. Step 4: Simplify right side
    21,985,010.20x = 409,941,254,844,284.81
  5. Step 5: Solve for x
    x = 409,941,254,844,284.81/21,985,010.20
  6. Step 6: Final answer
    x = 18,646,398.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.