Home / 13,435,331.70-20,155,621.95-5,346,930.90

Finding the Fourth Proportional to 13,435,331.70, 20,155,621.95 and 5,346,930.90

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Solution

The fourth proportional to 13,435,331.70, 20,155,621.95 and 5,346,930.90 is: 8,021,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435,331.70 : 20,155,621.95 = 5,346,930.90 : x
  2. Step 2: Convert to fraction form
    13,435,331.70/20,155,621.95 = 5,346,930.90/x
  3. Step 3: Cross multiply
    13,435,331.70x = 20,155,621.95 × 5,346,930.90
  4. Step 4: Simplify right side
    13,435,331.70x = 107,770,717,813,173.27
  5. Step 5: Solve for x
    x = 107,770,717,813,173.27/13,435,331.70
  6. Step 6: Final answer
    x = 8,021,440.80

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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.