Home / 13,325,090.84-18,388,685-7,213,519.32

Finding the Fourth Proportional to 13,325,090.84, 18,388,685 and 7,213,519.32

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Solution

The fourth proportional to 13,325,090.84, 18,388,685 and 7,213,519.32 is: 9,954,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,090.84 : 18,388,685 = 7,213,519.32 : x
  2. Step 2: Convert to fraction form
    13,325,090.84/18,388,685 = 7,213,519.32/x
  3. Step 3: Cross multiply
    13,325,090.84x = 18,388,685 × 7,213,519.32
  4. Step 4: Simplify right side
    13,325,090.84x = 132,647,134,516,894.20
  5. Step 5: Solve for x
    x = 132,647,134,516,894.20/13,325,090.84
  6. Step 6: Final answer
    x = 9,954,688.95

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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.