Home / 38,716,796.23-53,429,862.59-21,076,208.80

Finding the Fourth Proportional to 38,716,796.23, 53,429,862.59 and 21,076,208.80

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Solution

The fourth proportional to 38,716,796.23, 53,429,862.59 and 21,076,208.80 is: 29,085,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,716,796.23 : 53,429,862.59 = 21,076,208.80 : x
  2. Step 2: Convert to fraction form
    38,716,796.23/53,429,862.59 = 21,076,208.80/x
  3. Step 3: Cross multiply
    38,716,796.23x = 53,429,862.59 × 21,076,208.80
  4. Step 4: Simplify right side
    38,716,796.23x = 1,126,098,940,102,149
  5. Step 5: Solve for x
    x = 1,126,098,940,102,149/38,716,796.23
  6. Step 6: Final answer
    x = 29,085,540.38

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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.