Home / 28,785,985.58-43,190,913.09-12,603,584.30

Finding the Fourth Proportional to 28,785,985.58, 43,190,913.09 and 12,603,584.30

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Solution

The fourth proportional to 28,785,985.58, 43,190,913.09 and 12,603,584.30 is: 18,910,601.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785,985.58 : 43,190,913.09 = 12,603,584.30 : x
  2. Step 2: Convert to fraction form
    28,785,985.58/43,190,913.09 = 12,603,584.30/x
  3. Step 3: Cross multiply
    28,785,985.58x = 43,190,913.09 × 12,603,584.30
  4. Step 4: Simplify right side
    28,785,985.58x = 544,360,314,123,788.56
  5. Step 5: Solve for x
    x = 544,360,314,123,788.56/28,785,985.58
  6. Step 6: Final answer
    x = 18,910,601.92

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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.