Home / 13,617,830.18-18,792,040.38-7,422,740.66

Finding the Fourth Proportional to 13,617,830.18, 18,792,040.38 and 7,422,740.66

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Solution

The fourth proportional to 13,617,830.18, 18,792,040.38 and 7,422,740.66 is: 10,243,074.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617,830.18 : 18,792,040.38 = 7,422,740.66 : x
  2. Step 2: Convert to fraction form
    13,617,830.18/18,792,040.38 = 7,422,740.66/x
  3. Step 3: Cross multiply
    13,617,830.18x = 18,792,040.38 × 7,422,740.66
  4. Step 4: Simplify right side
    13,617,830.18x = 139,488,442,212,987.84
  5. Step 5: Solve for x
    x = 139,488,442,212,987.84/13,617,830.18
  6. Step 6: Final answer
    x = 10,243,074.00

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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.