Home / 18,171,713.94-25,076,965.40-9,911,775.80

Finding the Fourth Proportional to 18,171,713.94, 25,076,965.40 and 9,911,775.80

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Solution

The fourth proportional to 18,171,713.94, 25,076,965.40 and 9,911,775.80 is: 13,678,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171,713.94 : 25,076,965.40 = 9,911,775.80 : x
  2. Step 2: Convert to fraction form
    18,171,713.94/25,076,965.40 = 9,911,775.80/x
  3. Step 3: Cross multiply
    18,171,713.94x = 25,076,965.40 × 9,911,775.80
  4. Step 4: Simplify right side
    18,171,713.94x = 248,557,258,789,157.31
  5. Step 5: Solve for x
    x = 248,557,258,789,157.31/18,171,713.94
  6. Step 6: Final answer
    x = 13,678,250.69

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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.