Home / 18,732,076.80-28,084,118.40-10,222,022.40

Finding the Fourth Proportional to 18,732,076.80, 28,084,118.40 and 10,222,022.40

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Solution

The fourth proportional to 18,732,076.80, 28,084,118.40 and 10,222,022.40 is: 15,325,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732,076.80 : 28,084,118.40 = 10,222,022.40 : x
  2. Step 2: Convert to fraction form
    18,732,076.80/28,084,118.40 = 10,222,022.40/x
  3. Step 3: Cross multiply
    18,732,076.80x = 28,084,118.40 × 10,222,022.40
  4. Step 4: Simplify right side
    18,732,076.80x = 287,076,487,369,052.12
  5. Step 5: Solve for x
    x = 287,076,487,369,052.12/18,732,076.80
  6. Step 6: Final answer
    x = 15,325,395.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.