Home / 18,907,340.40-28,361,010.60-16,887,864.60

Finding the Fourth Proportional to 18,907,340.40, 28,361,010.60 and 16,887,864.60

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Solution

The fourth proportional to 18,907,340.40, 28,361,010.60 and 16,887,864.60 is: 25,331,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907,340.40 : 28,361,010.60 = 16,887,864.60 : x
  2. Step 2: Convert to fraction form
    18,907,340.40/28,361,010.60 = 16,887,864.60/x
  3. Step 3: Cross multiply
    18,907,340.40x = 28,361,010.60 × 16,887,864.60
  4. Step 4: Simplify right side
    18,907,340.40x = 478,956,906,931,964.81
  5. Step 5: Solve for x
    x = 478,956,906,931,964.81/18,907,340.40
  6. Step 6: Final answer
    x = 25,331,796.90

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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.