Home / 20,058,005.70-27,680,158.35-10,890,648.45

Finding the Fourth Proportional to 20,058,005.70, 27,680,158.35 and 10,890,648.45

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Solution

The fourth proportional to 20,058,005.70, 27,680,158.35 and 10,890,648.45 is: 15,029,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058,005.70 : 27,680,158.35 = 10,890,648.45 : x
  2. Step 2: Convert to fraction form
    20,058,005.70/27,680,158.35 = 10,890,648.45/x
  3. Step 3: Cross multiply
    20,058,005.70x = 27,680,158.35 × 10,890,648.45
  4. Step 4: Simplify right side
    20,058,005.70x = 301,454,873,630,182.06
  5. Step 5: Solve for x
    x = 301,454,873,630,182.06/20,058,005.70
  6. Step 6: Final answer
    x = 15,029,154.85

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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.