Home / 13,475,139.60-20,212,709.40-3,890,830.80

Finding the Fourth Proportional to 13,475,139.60, 20,212,709.40 and 3,890,830.80

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Solution

The fourth proportional to 13,475,139.60, 20,212,709.40 and 3,890,830.80 is: 5,836,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,139.60 : 20,212,709.40 = 3,890,830.80 : x
  2. Step 2: Convert to fraction form
    13,475,139.60/20,212,709.40 = 3,890,830.80/x
  3. Step 3: Cross multiply
    13,475,139.60x = 20,212,709.40 × 3,890,830.80
  4. Step 4: Simplify right side
    13,475,139.60x = 78,644,232,284,969.52
  5. Step 5: Solve for x
    x = 78,644,232,284,969.52/13,475,139.60
  6. Step 6: Final answer
    x = 5,836,246.20

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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.