Home / 18,914,103.70-28,371,155.55-13,141,201.30

Finding the Fourth Proportional to 18,914,103.70, 28,371,155.55 and 13,141,201.30

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Solution

The fourth proportional to 18,914,103.70, 28,371,155.55 and 13,141,201.30 is: 19,711,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914,103.70 : 28,371,155.55 = 13,141,201.30 : x
  2. Step 2: Convert to fraction form
    18,914,103.70/28,371,155.55 = 13,141,201.30/x
  3. Step 3: Cross multiply
    18,914,103.70x = 28,371,155.55 × 13,141,201.30
  4. Step 4: Simplify right side
    18,914,103.70x = 372,831,066,196,162.25
  5. Step 5: Solve for x
    x = 372,831,066,196,162.25/18,914,103.70
  6. Step 6: Final answer
    x = 19,711,801.95

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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.