Home / 10,780,820.90-16,171,231.35-8,867,633.30

Finding the Fourth Proportional to 10,780,820.90, 16,171,231.35 and 8,867,633.30

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Solution

The fourth proportional to 10,780,820.90, 16,171,231.35 and 8,867,633.30 is: 13,301,449.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,820.90 : 16,171,231.35 = 8,867,633.30 : x
  2. Step 2: Convert to fraction form
    10,780,820.90/16,171,231.35 = 8,867,633.30/x
  3. Step 3: Cross multiply
    10,780,820.90x = 16,171,231.35 × 8,867,633.30
  4. Step 4: Simplify right side
    10,780,820.90x = 143,400,549,621,263.97
  5. Step 5: Solve for x
    x = 143,400,549,621,263.97/10,780,820.90
  6. Step 6: Final answer
    x = 13,301,449.95

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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.