Home / 20,058,171.84-27,680,421.60-10,890,820.80

Finding the Fourth Proportional to 20,058,171.84, 27,680,421.60 and 10,890,820.80

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Solution

The fourth proportional to 20,058,171.84, 27,680,421.60 and 10,890,820.80 is: 15,029,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058,171.84 : 27,680,421.60 = 10,890,820.80 : x
  2. Step 2: Convert to fraction form
    20,058,171.84/27,680,421.60 = 10,890,820.80/x
  3. Step 3: Cross multiply
    20,058,171.84x = 27,680,421.60 × 10,890,820.80
  4. Step 4: Simplify right side
    20,058,171.84x = 301,462,511,314,049.31
  5. Step 5: Solve for x
    x = 301,462,511,314,049.31/20,058,171.84
  6. Step 6: Final answer
    x = 15,029,411.14

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1.5x scale

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.