Home / 13,712,429.21-18,922,742.19-7,517,264.22

Finding the Fourth Proportional to 13,712,429.21, 18,922,742.19 and 7,517,264.22

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Solution

The fourth proportional to 13,712,429.21, 18,922,742.19 and 7,517,264.22 is: 10,373,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712,429.21 : 18,922,742.19 = 7,517,264.22 : x
  2. Step 2: Convert to fraction form
    13,712,429.21/18,922,742.19 = 7,517,264.22/x
  3. Step 3: Cross multiply
    13,712,429.21x = 18,922,742.19 × 7,517,264.22
  4. Step 4: Simplify right side
    13,712,429.21x = 142,247,252,809,171.44
  5. Step 5: Solve for x
    x = 142,247,252,809,171.44/13,712,429.21
  6. Step 6: Final answer
    x = 10,373,599.80

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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.