Home / 10,502,079.20-15,764,928.60-8,116,499.60

Finding the Fourth Proportional to 10,502,079.20, 15,764,928.60 and 8,116,499.60

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Solution

The fourth proportional to 10,502,079.20, 15,764,928.60 and 8,116,499.60 is: 12,183,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,079.20 : 15,764,928.60 = 8,116,499.60 : x
  2. Step 2: Convert to fraction form
    10,502,079.20/15,764,928.60 = 8,116,499.60/x
  3. Step 3: Cross multiply
    10,502,079.20x = 15,764,928.60 × 8,116,499.60
  4. Step 4: Simplify right side
    10,502,079.20x = 127,956,036,675,928.55
  5. Step 5: Solve for x
    x = 127,956,036,675,928.55/10,502,079.20
  6. Step 6: Final answer
    x = 12,183,876.57

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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.