Home / 12,919,960.40-19,379,940.60-10,400,536.40

Finding the Fourth Proportional to 12,919,960.40, 19,379,940.60 and 10,400,536.40

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Solution

The fourth proportional to 12,919,960.40, 19,379,940.60 and 10,400,536.40 is: 15,600,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,960.40 : 19,379,940.60 = 10,400,536.40 : x
  2. Step 2: Convert to fraction form
    12,919,960.40/19,379,940.60 = 10,400,536.40/x
  3. Step 3: Cross multiply
    12,919,960.40x = 19,379,940.60 × 10,400,536.40
  4. Step 4: Simplify right side
    12,919,960.40x = 201,561,777,640,137.88
  5. Step 5: Solve for x
    x = 201,561,777,640,137.88/12,919,960.40
  6. Step 6: Final answer
    x = 15,600,804.60

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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.