Home / 13,505,545.62-18,639,427.86-7,702,997.22

Finding the Fourth Proportional to 13,505,545.62, 18,639,427.86 and 7,702,997.22

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Solution

The fourth proportional to 13,505,545.62, 18,639,427.86 and 7,702,997.22 is: 10,631,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,545.62 : 18,639,427.86 = 7,702,997.22 : x
  2. Step 2: Convert to fraction form
    13,505,545.62/18,639,427.86 = 7,702,997.22/x
  3. Step 3: Cross multiply
    13,505,545.62x = 18,639,427.86 × 7,702,997.22
  4. Step 4: Simplify right side
    13,505,545.62x = 143,579,460,987,970.53
  5. Step 5: Solve for x
    x = 143,579,460,987,970.53/13,505,545.62
  6. Step 6: Final answer
    x = 10,631,148.49

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1.5x scale

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.