Home / 13,209,213.69-18,230,707.40-8,055,564.62

Finding the Fourth Proportional to 13,209,213.69, 18,230,707.40 and 8,055,564.62

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Solution

The fourth proportional to 13,209,213.69, 18,230,707.40 and 8,055,564.62 is: 11,117,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,213.69 : 18,230,707.40 = 8,055,564.62 : x
  2. Step 2: Convert to fraction form
    13,209,213.69/18,230,707.40 = 8,055,564.62/x
  3. Step 3: Cross multiply
    13,209,213.69x = 18,230,707.40 × 8,055,564.62
  4. Step 4: Simplify right side
    13,209,213.69x = 146,858,641,397,580.84
  5. Step 5: Solve for x
    x = 146,858,641,397,580.84/13,209,213.69
  6. Step 6: Final answer
    x = 11,117,894.29

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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.