Home / 18,969,037.42-28,458,883.77-7,617,457.66

Finding the Fourth Proportional to 18,969,037.42, 28,458,883.77 and 7,617,457.66

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Solution

The fourth proportional to 18,969,037.42, 28,458,883.77 and 7,617,457.66 is: 11,428,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,037.42 : 28,458,883.77 = 7,617,457.66 : x
  2. Step 2: Convert to fraction form
    18,969,037.42/28,458,883.77 = 7,617,457.66/x
  3. Step 3: Cross multiply
    18,969,037.42x = 28,458,883.77 × 7,617,457.66
  4. Step 4: Simplify right side
    18,969,037.42x = 216,784,342,168,836.19
  5. Step 5: Solve for x
    x = 216,784,342,168,836.19/18,969,037.42
  6. Step 6: Final answer
    x = 11,428,325.93

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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.