Home / 12,504,573.72-18,756,510.66-3,985,421.40

Finding the Fourth Proportional to 12,504,573.72, 18,756,510.66 and 3,985,421.40

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Solution

The fourth proportional to 12,504,573.72, 18,756,510.66 and 3,985,421.40 is: 5,978,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504,573.72 : 18,756,510.66 = 3,985,421.40 : x
  2. Step 2: Convert to fraction form
    12,504,573.72/18,756,510.66 = 3,985,421.40/x
  3. Step 3: Cross multiply
    12,504,573.72x = 18,756,510.66 × 3,985,421.40
  4. Step 4: Simplify right side
    12,504,573.72x = 74,752,598,973,692.12
  5. Step 5: Solve for x
    x = 74,752,598,973,692.12/12,504,573.72
  6. Step 6: Final answer
    x = 5,978,020.57

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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.