Home / 13,828,769.20-20,743,153.80-12,458,832.40

Finding the Fourth Proportional to 13,828,769.20, 20,743,153.80 and 12,458,832.40

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Solution

The fourth proportional to 13,828,769.20, 20,743,153.80 and 12,458,832.40 is: 18,688,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828,769.20 : 20,743,153.80 = 12,458,832.40 : x
  2. Step 2: Convert to fraction form
    13,828,769.20/20,743,153.80 = 12,458,832.40/x
  3. Step 3: Cross multiply
    13,828,769.20x = 20,743,153.80 × 12,458,832.40
  4. Step 4: Simplify right side
    13,828,769.20x = 258,435,476,641,623.12
  5. Step 5: Solve for x
    x = 258,435,476,641,623.12/13,828,769.20
  6. Step 6: Final answer
    x = 18,688,248.60

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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.