Home / 13,308,861.20-19,963,291.80-5,222,100.65

Finding the Fourth Proportional to 13,308,861.20, 19,963,291.80 and 5,222,100.65

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Solution

The fourth proportional to 13,308,861.20, 19,963,291.80 and 5,222,100.65 is: 7,833,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308,861.20 : 19,963,291.80 = 5,222,100.65 : x
  2. Step 2: Convert to fraction form
    13,308,861.20/19,963,291.80 = 5,222,100.65/x
  3. Step 3: Cross multiply
    13,308,861.20x = 19,963,291.80 × 5,222,100.65
  4. Step 4: Simplify right side
    13,308,861.20x = 104,250,319,084,919.69
  5. Step 5: Solve for x
    x = 104,250,319,084,919.69/13,308,861.20
  6. Step 6: Final answer
    x = 7,833,150.98

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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.