Home / 12,457,421.68-18,674,716.32-4,365,986.56

Finding the Fourth Proportional to 12,457,421.68, 18,674,716.32 and 4,365,986.56

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Solution

The fourth proportional to 12,457,421.68, 18,674,716.32 and 4,365,986.56 is: 6,544,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,421.68 : 18,674,716.32 = 4,365,986.56 : x
  2. Step 2: Convert to fraction form
    12,457,421.68/18,674,716.32 = 4,365,986.56/x
  3. Step 3: Cross multiply
    12,457,421.68x = 18,674,716.32 × 4,365,986.56
  4. Step 4: Simplify right side
    12,457,421.68x = 81,533,560,464,932.66
  5. Step 5: Solve for x
    x = 81,533,560,464,932.66/12,457,421.68
  6. Step 6: Final answer
    x = 6,544,978.77

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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.