Home / 13,505,491.80-18,639,353.52-7,702,943.40

Finding the Fourth Proportional to 13,505,491.80, 18,639,353.52 and 7,702,943.40

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Solution

The fourth proportional to 13,505,491.80, 18,639,353.52 and 7,702,943.40 is: 10,631,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,491.80 : 18,639,353.52 = 7,702,943.40 : x
  2. Step 2: Convert to fraction form
    13,505,491.80/18,639,353.52 = 7,702,943.40/x
  3. Step 3: Cross multiply
    13,505,491.80x = 18,639,353.52 × 7,702,943.40
  4. Step 4: Simplify right side
    13,505,491.80x = 143,577,885,177,150.78
  5. Step 5: Solve for x
    x = 143,577,885,177,150.78/13,505,491.80
  6. Step 6: Final answer
    x = 10,631,074.18

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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.