Home / 39,856,542.40-59,784,813.60-12,930,198.40

Finding the Fourth Proportional to 39,856,542.40, 59,784,813.60 and 12,930,198.40

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Solution

The fourth proportional to 39,856,542.40, 59,784,813.60 and 12,930,198.40 is: 19,395,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,856,542.40 : 59,784,813.60 = 12,930,198.40 : x
  2. Step 2: Convert to fraction form
    39,856,542.40/59,784,813.60 = 12,930,198.40/x
  3. Step 3: Cross multiply
    39,856,542.40x = 59,784,813.60 × 12,930,198.40
  4. Step 4: Simplify right side
    39,856,542.40x = 773,029,501,155,018.25
  5. Step 5: Solve for x
    x = 773,029,501,155,018.25/39,856,542.40
  6. Step 6: Final answer
    x = 19,395,297.60

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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.