Home / 13,509,905.26-18,643,529.37-7,314,845.38

Finding the Fourth Proportional to 13,509,905.26, 18,643,529.37 and 7,314,845.38

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Solution

The fourth proportional to 13,509,905.26, 18,643,529.37 and 7,314,845.38 is: 10,094,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509,905.26 : 18,643,529.37 = 7,314,845.38 : x
  2. Step 2: Convert to fraction form
    13,509,905.26/18,643,529.37 = 7,314,845.38/x
  3. Step 3: Cross multiply
    13,509,905.26x = 18,643,529.37 × 7,314,845.38
  4. Step 4: Simplify right side
    13,509,905.26x = 136,374,534,679,038.81
  5. Step 5: Solve for x
    x = 136,374,534,679,038.81/13,509,905.26
  6. Step 6: Final answer
    x = 10,094,410.88

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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.