Home / 13,618,533.45-18,792,636.93-7,658,831.37

Finding the Fourth Proportional to 13,618,533.45, 18,792,636.93 and 7,658,831.37

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Solution

The fourth proportional to 13,618,533.45, 18,792,636.93 and 7,658,831.37 is: 10,568,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618,533.45 : 18,792,636.93 = 7,658,831.37 : x
  2. Step 2: Convert to fraction form
    13,618,533.45/18,792,636.93 = 7,658,831.37/x
  3. Step 3: Cross multiply
    13,618,533.45x = 18,792,636.93 × 7,658,831.37
  4. Step 4: Simplify right side
    13,618,533.45x = 143,929,637,244,504.50
  5. Step 5: Solve for x
    x = 143,929,637,244,504.50/13,618,533.45
  6. Step 6: Final answer
    x = 10,568,659.08

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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.