Home / 13,492,308.31-18,619,409.96-7,380,736.81

Finding the Fourth Proportional to 13,492,308.31, 18,619,409.96 and 7,380,736.81

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Solution

The fourth proportional to 13,492,308.31, 18,619,409.96 and 7,380,736.81 is: 10,185,430.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492,308.31 : 18,619,409.96 = 7,380,736.81 : x
  2. Step 2: Convert to fraction form
    13,492,308.31/18,619,409.96 = 7,380,736.81/x
  3. Step 3: Cross multiply
    13,492,308.31x = 18,619,409.96 × 7,380,736.81
  4. Step 4: Simplify right side
    13,492,308.31x = 137,424,964,416,478.17
  5. Step 5: Solve for x
    x = 137,424,964,416,478.17/13,492,308.31
  6. Step 6: Final answer
    x = 10,185,430.19

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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.