Home / 10,881,928.20-16,358,321.70-7,709,028.60

Finding the Fourth Proportional to 10,881,928.20, 16,358,321.70 and 7,709,028.60

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Solution

The fourth proportional to 10,881,928.20, 16,358,321.70 and 7,709,028.60 is: 11,588,641.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881,928.20 : 16,358,321.70 = 7,709,028.60 : x
  2. Step 2: Convert to fraction form
    10,881,928.20/16,358,321.70 = 7,709,028.60/x
  3. Step 3: Cross multiply
    10,881,928.20x = 16,358,321.70 × 7,709,028.60
  4. Step 4: Simplify right side
    10,881,928.20x = 126,106,769,833,300.61
  5. Step 5: Solve for x
    x = 126,106,769,833,300.61/10,881,928.20
  6. Step 6: Final answer
    x = 11,588,641.97

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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.