Home / 13,590,714.47-18,755,188.54-7,479,142.97

Finding the Fourth Proportional to 13,590,714.47, 18,755,188.54 and 7,479,142.97

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Solution

The fourth proportional to 13,590,714.47, 18,755,188.54 and 7,479,142.97 is: 10,321,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,714.47 : 18,755,188.54 = 7,479,142.97 : x
  2. Step 2: Convert to fraction form
    13,590,714.47/18,755,188.54 = 7,479,142.97/x
  3. Step 3: Cross multiply
    13,590,714.47x = 18,755,188.54 × 7,479,142.97
  4. Step 4: Simplify right side
    13,590,714.47x = 140,272,736,407,491.77
  5. Step 5: Solve for x
    x = 140,272,736,407,491.77/13,590,714.47
  6. Step 6: Final answer
    x = 10,321,218.71

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1.5x scale

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.