Home / 13,918,620.43-19,208,136.62-8,038,148.21

Finding the Fourth Proportional to 13,918,620.43, 19,208,136.62 and 8,038,148.21

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Solution

The fourth proportional to 13,918,620.43, 19,208,136.62 and 8,038,148.21 is: 11,092,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918,620.43 : 19,208,136.62 = 8,038,148.21 : x
  2. Step 2: Convert to fraction form
    13,918,620.43/19,208,136.62 = 8,038,148.21/x
  3. Step 3: Cross multiply
    13,918,620.43x = 19,208,136.62 × 8,038,148.21
  4. Step 4: Simplify right side
    13,918,620.43x = 154,397,848,985,573.66
  5. Step 5: Solve for x
    x = 154,397,848,985,573.66/13,918,620.43
  6. Step 6: Final answer
    x = 11,092,898.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.