Home / 18,717,629.20-28,076,443.80-12,671,011.60

Finding the Fourth Proportional to 18,717,629.20, 28,076,443.80 and 12,671,011.60

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Solution

The fourth proportional to 18,717,629.20, 28,076,443.80 and 12,671,011.60 is: 19,006,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,629.20 : 28,076,443.80 = 12,671,011.60 : x
  2. Step 2: Convert to fraction form
    18,717,629.20/28,076,443.80 = 12,671,011.60/x
  3. Step 3: Cross multiply
    18,717,629.20x = 28,076,443.80 × 12,671,011.60
  4. Step 4: Simplify right side
    18,717,629.20x = 355,756,945,076,548.06
  5. Step 5: Solve for x
    x = 355,756,945,076,548.06/18,717,629.20
  6. Step 6: Final answer
    x = 19,006,517.40

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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.