Home / 18,139,355.52-25,032,310.64-9,990,593.52

Finding the Fourth Proportional to 18,139,355.52, 25,032,310.64 and 9,990,593.52

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Solution

The fourth proportional to 18,139,355.52, 25,032,310.64 and 9,990,593.52 is: 13,787,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,355.52 : 25,032,310.64 = 9,990,593.52 : x
  2. Step 2: Convert to fraction form
    18,139,355.52/25,032,310.64 = 9,990,593.52/x
  3. Step 3: Cross multiply
    18,139,355.52x = 25,032,310.64 × 9,990,593.52
  4. Step 4: Simplify right side
    18,139,355.52x = 250,087,640,470,611.06
  5. Step 5: Solve for x
    x = 250,087,640,470,611.06/18,139,355.52
  6. Step 6: Final answer
    x = 13,787,019.07

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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.