Home / 28,145,912.61-42,246,102.66-13,583,083.71

Finding the Fourth Proportional to 28,145,912.61, 42,246,102.66 and 13,583,083.71

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Solution

The fourth proportional to 28,145,912.61, 42,246,102.66 and 13,583,083.71 is: 20,387,768.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145,912.61 : 42,246,102.66 = 13,583,083.71 : x
  2. Step 2: Convert to fraction form
    28,145,912.61/42,246,102.66 = 13,583,083.71/x
  3. Step 3: Cross multiply
    28,145,912.61x = 42,246,102.66 × 13,583,083.71
  4. Step 4: Simplify right side
    28,145,912.61x = 573,832,348,784,118.25
  5. Step 5: Solve for x
    x = 573,832,348,784,118.25/28,145,912.61
  6. Step 6: Final answer
    x = 20,387,768.44

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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.