Home / 8,399,972.80-12,568,466.40-7,644,145.60

Finding the Fourth Proportional to 8,399,972.80, 12,568,466.40 and 7,644,145.60

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Solution

The fourth proportional to 8,399,972.80, 12,568,466.40 and 7,644,145.60 is: 11,437,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399,972.80 : 12,568,466.40 = 7,644,145.60 : x
  2. Step 2: Convert to fraction form
    8,399,972.80/12,568,466.40 = 7,644,145.60/x
  3. Step 3: Cross multiply
    8,399,972.80x = 12,568,466.40 × 7,644,145.60
  4. Step 4: Simplify right side
    8,399,972.80x = 96,075,187,130,307.84
  5. Step 5: Solve for x
    x = 96,075,187,130,307.84/8,399,972.80
  6. Step 6: Final answer
    x = 11,437,559.31

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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.