Home / 13,259,318.40-19,888,977.60-11,131,804.80

Finding the Fourth Proportional to 13,259,318.40, 19,888,977.60 and 11,131,804.80

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Solution

The fourth proportional to 13,259,318.40, 19,888,977.60 and 11,131,804.80 is: 16,697,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259,318.40 : 19,888,977.60 = 11,131,804.80 : x
  2. Step 2: Convert to fraction form
    13,259,318.40/19,888,977.60 = 11,131,804.80/x
  3. Step 3: Cross multiply
    13,259,318.40x = 19,888,977.60 × 11,131,804.80
  4. Step 4: Simplify right side
    13,259,318.40x = 221,400,216,314,772.50
  5. Step 5: Solve for x
    x = 221,400,216,314,772.50/13,259,318.40
  6. Step 6: Final answer
    x = 16,697,707.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.