Home / 12,456,813.40-18,685,220.10-3,481,365.40

Finding the Fourth Proportional to 12,456,813.40, 18,685,220.10 and 3,481,365.40

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Solution

The fourth proportional to 12,456,813.40, 18,685,220.10 and 3,481,365.40 is: 5,222,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,813.40 : 18,685,220.10 = 3,481,365.40 : x
  2. Step 2: Convert to fraction form
    12,456,813.40/18,685,220.10 = 3,481,365.40/x
  3. Step 3: Cross multiply
    12,456,813.40x = 18,685,220.10 × 3,481,365.40
  4. Step 4: Simplify right side
    12,456,813.40x = 65,050,078,747,524.55
  5. Step 5: Solve for x
    x = 65,050,078,747,524.55/12,456,813.40
  6. Step 6: Final answer
    x = 5,222,048.10

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1.5x scale

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.