Home / 13,578,348.40-20,391,142.20-7,201,056.40

Finding the Fourth Proportional to 13,578,348.40, 20,391,142.20 and 7,201,056.40

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Solution

The fourth proportional to 13,578,348.40, 20,391,142.20 and 7,201,056.40 is: 10,814,110.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,348.40 : 20,391,142.20 = 7,201,056.40 : x
  2. Step 2: Convert to fraction form
    13,578,348.40/20,391,142.20 = 7,201,056.40/x
  3. Step 3: Cross multiply
    13,578,348.40x = 20,391,142.20 × 7,201,056.40
  4. Step 4: Simplify right side
    13,578,348.40x = 146,837,765,042,620.09
  5. Step 5: Solve for x
    x = 146,837,765,042,620.09/13,578,348.40
  6. Step 6: Final answer
    x = 10,814,110.87

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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.