Home / 10,867,221.60-16,300,832.40-7,678,575.60

Finding the Fourth Proportional to 10,867,221.60, 16,300,832.40 and 7,678,575.60

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Solution

The fourth proportional to 10,867,221.60, 16,300,832.40 and 7,678,575.60 is: 11,517,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867,221.60 : 16,300,832.40 = 7,678,575.60 : x
  2. Step 2: Convert to fraction form
    10,867,221.60/16,300,832.40 = 7,678,575.60/x
  3. Step 3: Cross multiply
    10,867,221.60x = 16,300,832.40 × 7,678,575.60
  4. Step 4: Simplify right side
    10,867,221.60x = 125,167,173,926,329.44
  5. Step 5: Solve for x
    x = 125,167,173,926,329.44/10,867,221.60
  6. Step 6: Final answer
    x = 11,517,863.40

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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.