Home / 12,785,500.80-19,189,137.60-5,217,897.60

Finding the Fourth Proportional to 12,785,500.80, 19,189,137.60 and 5,217,897.60

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Solution

The fourth proportional to 12,785,500.80, 19,189,137.60 and 5,217,897.60 is: 7,831,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,500.80 : 19,189,137.60 = 5,217,897.60 : x
  2. Step 2: Convert to fraction form
    12,785,500.80/19,189,137.60 = 5,217,897.60/x
  3. Step 3: Cross multiply
    12,785,500.80x = 19,189,137.60 × 5,217,897.60
  4. Step 4: Simplify right side
    12,785,500.80x = 100,126,955,029,109.77
  5. Step 5: Solve for x
    x = 100,126,955,029,109.77/12,785,500.80
  6. Step 6: Final answer
    x = 7,831,289.25

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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.