Home / 18,076,513.90-27,141,342.90-12,708,959.80

Finding the Fourth Proportional to 18,076,513.90, 27,141,342.90 and 12,708,959.80

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Solution

The fourth proportional to 18,076,513.90, 27,141,342.90 and 12,708,959.80 is: 19,082,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076,513.90 : 27,141,342.90 = 12,708,959.80 : x
  2. Step 2: Convert to fraction form
    18,076,513.90/27,141,342.90 = 12,708,959.80/x
  3. Step 3: Cross multiply
    18,076,513.90x = 27,141,342.90 × 12,708,959.80
  4. Step 4: Simplify right side
    18,076,513.90x = 344,938,235,834,115.44
  5. Step 5: Solve for x
    x = 344,938,235,834,115.44/18,076,513.90
  6. Step 6: Final answer
    x = 19,082,121.57

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1.5x scale

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.