Home / 13,191,508.21-18,204,283.09-7,311,521.60

Finding the Fourth Proportional to 13,191,508.21, 18,204,283.09 and 7,311,521.60

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Solution

The fourth proportional to 13,191,508.21, 18,204,283.09 and 7,311,521.60 is: 10,089,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,508.21 : 18,204,283.09 = 7,311,521.60 : x
  2. Step 2: Convert to fraction form
    13,191,508.21/18,204,283.09 = 7,311,521.60/x
  3. Step 3: Cross multiply
    13,191,508.21x = 18,204,283.09 × 7,311,521.60
  4. Step 4: Simplify right side
    13,191,508.21x = 133,101,009,068,268.98
  5. Step 5: Solve for x
    x = 133,101,009,068,268.98/13,191,508.21
  6. Step 6: Final answer
    x = 10,089,900.78

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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.