Home / 13,640,443.22-18,821,001.69-7,838,103.96

Finding the Fourth Proportional to 13,640,443.22, 18,821,001.69 and 7,838,103.96

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Solution

The fourth proportional to 13,640,443.22, 18,821,001.69 and 7,838,103.96 is: 10,814,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,443.22 : 18,821,001.69 = 7,838,103.96 : x
  2. Step 2: Convert to fraction form
    13,640,443.22/18,821,001.69 = 7,838,103.96/x
  3. Step 3: Cross multiply
    13,640,443.22x = 18,821,001.69 × 7,838,103.96
  4. Step 4: Simplify right side
    13,640,443.22x = 147,520,967,877,555.69
  5. Step 5: Solve for x
    x = 147,520,967,877,555.69/13,640,443.22
  6. Step 6: Final answer
    x = 10,814,968.80

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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.