Home / 12,798,091.20-19,197,136.80-8,493,419.10

Finding the Fourth Proportional to 12,798,091.20, 19,197,136.80 and 8,493,419.10

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Solution

The fourth proportional to 12,798,091.20, 19,197,136.80 and 8,493,419.10 is: 12,740,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798,091.20 : 19,197,136.80 = 8,493,419.10 : x
  2. Step 2: Convert to fraction form
    12,798,091.20/19,197,136.80 = 8,493,419.10/x
  3. Step 3: Cross multiply
    12,798,091.20x = 19,197,136.80 × 8,493,419.10
  4. Step 4: Simplify right side
    12,798,091.20x = 163,049,328,362,432.88
  5. Step 5: Solve for x
    x = 163,049,328,362,432.88/12,798,091.20
  6. Step 6: Final answer
    x = 12,740,128.65

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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.