Home / 18,969,036.92-28,458,883.02-7,617,457.16

Finding the Fourth Proportional to 18,969,036.92, 28,458,883.02 and 7,617,457.16

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Solution

The fourth proportional to 18,969,036.92, 28,458,883.02 and 7,617,457.16 is: 11,428,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,036.92 : 28,458,883.02 = 7,617,457.16 : x
  2. Step 2: Convert to fraction form
    18,969,036.92/28,458,883.02 = 7,617,457.16/x
  3. Step 3: Cross multiply
    18,969,036.92x = 28,458,883.02 × 7,617,457.16
  4. Step 4: Simplify right side
    18,969,036.92x = 216,784,322,226,301.44
  5. Step 5: Solve for x
    x = 216,784,322,226,301.44/18,969,036.92
  6. Step 6: Final answer
    x = 11,428,325.18

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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.