Home / 8,075,309.64-11,147,659.20-4,978,386.44

Finding the Fourth Proportional to 8,075,309.64, 11,147,659.20 and 4,978,386.44

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Solution

The fourth proportional to 8,075,309.64, 11,147,659.20 and 4,978,386.44 is: 6,872,473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075,309.64 : 11,147,659.20 = 4,978,386.44 : x
  2. Step 2: Convert to fraction form
    8,075,309.64/11,147,659.20 = 4,978,386.44/x
  3. Step 3: Cross multiply
    8,075,309.64x = 11,147,659.20 × 4,978,386.44
  4. Step 4: Simplify right side
    8,075,309.64x = 55,497,355,399,021.25
  5. Step 5: Solve for x
    x = 55,497,355,399,021.25/8,075,309.64
  6. Step 6: Final answer
    x = 6,872,473.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.