Home / 18,968,784.42-28,458,503.19-7,617,204.66

Finding the Fourth Proportional to 18,968,784.42, 28,458,503.19 and 7,617,204.66

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Solution

The fourth proportional to 18,968,784.42, 28,458,503.19 and 7,617,204.66 is: 11,427,945.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,784.42 : 28,458,503.19 = 7,617,204.66 : x
  2. Step 2: Convert to fraction form
    18,968,784.42/28,458,503.19 = 7,617,204.66/x
  3. Step 3: Cross multiply
    18,968,784.42x = 28,458,503.19 × 7,617,204.66
  4. Step 4: Simplify right side
    18,968,784.42x = 216,774,243,115,492.88
  5. Step 5: Solve for x
    x = 216,774,243,115,492.88/18,968,784.42
  6. Step 6: Final answer
    x = 11,427,945.95

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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.