Home / 11,978,465.40-17,967,698.10-7,183,686.60

Finding the Fourth Proportional to 11,978,465.40, 17,967,698.10 and 7,183,686.60

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Solution

The fourth proportional to 11,978,465.40, 17,967,698.10 and 7,183,686.60 is: 10,775,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978,465.40 : 17,967,698.10 = 7,183,686.60 : x
  2. Step 2: Convert to fraction form
    11,978,465.40/17,967,698.10 = 7,183,686.60/x
  3. Step 3: Cross multiply
    11,978,465.40x = 17,967,698.10 × 7,183,686.60
  4. Step 4: Simplify right side
    11,978,465.40x = 129,074,312,073,815.47
  5. Step 5: Solve for x
    x = 129,074,312,073,815.47/11,978,465.40
  6. Step 6: Final answer
    x = 10,775,529.90

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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.