Home / 13,288,376.20-19,932,564.30-12,403,640.20

Finding the Fourth Proportional to 13,288,376.20, 19,932,564.30 and 12,403,640.20

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Solution

The fourth proportional to 13,288,376.20, 19,932,564.30 and 12,403,640.20 is: 18,605,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288,376.20 : 19,932,564.30 = 12,403,640.20 : x
  2. Step 2: Convert to fraction form
    13,288,376.20/19,932,564.30 = 12,403,640.20/x
  3. Step 3: Cross multiply
    13,288,376.20x = 19,932,564.30 × 12,403,640.20
  4. Step 4: Simplify right side
    13,288,376.20x = 247,236,355,840,564.84
  5. Step 5: Solve for x
    x = 247,236,355,840,564.84/13,288,376.20
  6. Step 6: Final answer
    x = 18,605,460.30

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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.