Home / 13,608,518.20-20,365,538.10-12,474,777.40

Finding the Fourth Proportional to 13,608,518.20, 20,365,538.10 and 12,474,777.40

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Solution

The fourth proportional to 13,608,518.20, 20,365,538.10 and 12,474,777.40 is: 18,668,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,518.20 : 20,365,538.10 = 12,474,777.40 : x
  2. Step 2: Convert to fraction form
    13,608,518.20/20,365,538.10 = 12,474,777.40/x
  3. Step 3: Cross multiply
    13,608,518.20x = 20,365,538.10 × 12,474,777.40
  4. Step 4: Simplify right side
    13,608,518.20x = 254,055,554,428,718.97
  5. Step 5: Solve for x
    x = 254,055,554,428,718.97/13,608,518.20
  6. Step 6: Final answer
    x = 18,668,862.45

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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.