Home / 18,717,625.20-28,076,437.80-12,671,007.60

Finding the Fourth Proportional to 18,717,625.20, 28,076,437.80 and 12,671,007.60

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Solution

The fourth proportional to 18,717,625.20, 28,076,437.80 and 12,671,007.60 is: 19,006,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,625.20 : 28,076,437.80 = 12,671,007.60 : x
  2. Step 2: Convert to fraction form
    18,717,625.20/28,076,437.80 = 12,671,007.60/x
  3. Step 3: Cross multiply
    18,717,625.20x = 28,076,437.80 × 12,671,007.60
  4. Step 4: Simplify right side
    18,717,625.20x = 355,756,756,744,727.25
  5. Step 5: Solve for x
    x = 355,756,756,744,727.25/18,717,625.20
  6. Step 6: Final answer
    x = 19,006,511.40

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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.