Home / 13,120,299.20-19,683,213.60-5,543,364.80

Finding the Fourth Proportional to 13,120,299.20, 19,683,213.60 and 5,543,364.80

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Solution

The fourth proportional to 13,120,299.20, 19,683,213.60 and 5,543,364.80 is: 8,316,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,299.20 : 19,683,213.60 = 5,543,364.80 : x
  2. Step 2: Convert to fraction form
    13,120,299.20/19,683,213.60 = 5,543,364.80/x
  3. Step 3: Cross multiply
    13,120,299.20x = 19,683,213.60 × 5,543,364.80
  4. Step 4: Simplify right side
    13,120,299.20x = 109,111,233,421,121.28
  5. Step 5: Solve for x
    x = 109,111,233,421,121.28/13,120,299.20
  6. Step 6: Final answer
    x = 8,316,215.34

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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.