Home / 12,775,013.40-19,162,520.10-12,271,128.60

Finding the Fourth Proportional to 12,775,013.40, 19,162,520.10 and 12,271,128.60

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Solution

The fourth proportional to 12,775,013.40, 19,162,520.10 and 12,271,128.60 is: 18,406,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,013.40 : 19,162,520.10 = 12,271,128.60 : x
  2. Step 2: Convert to fraction form
    12,775,013.40/19,162,520.10 = 12,271,128.60/x
  3. Step 3: Cross multiply
    12,775,013.40x = 19,162,520.10 × 12,271,128.60
  4. Step 4: Simplify right side
    12,775,013.40x = 235,145,748,447,184.88
  5. Step 5: Solve for x
    x = 235,145,748,447,184.88/12,775,013.40
  6. Step 6: Final answer
    x = 18,406,692.90

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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.