Home / 12,504,280.80-18,756,421.20-3,985,240.80

Finding the Fourth Proportional to 12,504,280.80, 18,756,421.20 and 3,985,240.80

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Solution

The fourth proportional to 12,504,280.80, 18,756,421.20 and 3,985,240.80 is: 5,977,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504,280.80 : 18,756,421.20 = 3,985,240.80 : x
  2. Step 2: Convert to fraction form
    12,504,280.80/18,756,421.20 = 3,985,240.80/x
  3. Step 3: Cross multiply
    12,504,280.80x = 18,756,421.20 × 3,985,240.80
  4. Step 4: Simplify right side
    12,504,280.80x = 74,748,855,028,224.95
  5. Step 5: Solve for x
    x = 74,748,855,028,224.95/12,504,280.80
  6. Step 6: Final answer
    x = 5,977,861.20

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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.