Home / 18,578,370.40-27,867,555.60-6,443,800.90

Finding the Fourth Proportional to 18,578,370.40, 27,867,555.60 and 6,443,800.90

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Solution

The fourth proportional to 18,578,370.40, 27,867,555.60 and 6,443,800.90 is: 9,665,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578,370.40 : 27,867,555.60 = 6,443,800.90 : x
  2. Step 2: Convert to fraction form
    18,578,370.40/27,867,555.60 = 6,443,800.90/x
  3. Step 3: Cross multiply
    18,578,370.40x = 27,867,555.60 × 6,443,800.90
  4. Step 4: Simplify right side
    18,578,370.40x = 179,572,979,856,080.06
  5. Step 5: Solve for x
    x = 179,572,979,856,080.06/18,578,370.40
  6. Step 6: Final answer
    x = 9,665,701.35

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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.