Home / 13,657,106.40-20,485,659.60-12,541,080.30

Finding the Fourth Proportional to 13,657,106.40, 20,485,659.60 and 12,541,080.30

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Solution

The fourth proportional to 13,657,106.40, 20,485,659.60 and 12,541,080.30 is: 18,811,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657,106.40 : 20,485,659.60 = 12,541,080.30 : x
  2. Step 2: Convert to fraction form
    13,657,106.40/20,485,659.60 = 12,541,080.30/x
  3. Step 3: Cross multiply
    13,657,106.40x = 20,485,659.60 × 12,541,080.30
  4. Step 4: Simplify right side
    13,657,106.40x = 256,912,302,042,065.91
  5. Step 5: Solve for x
    x = 256,912,302,042,065.91/13,657,106.40
  6. Step 6: Final answer
    x = 18,811,620.45

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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.