Home / 18,967,699.84-28,450,546.08-5,321,796.16

Finding the Fourth Proportional to 18,967,699.84, 28,450,546.08 and 5,321,796.16

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Solution

The fourth proportional to 18,967,699.84, 28,450,546.08 and 5,321,796.16 is: 7,982,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967,699.84 : 28,450,546.08 = 5,321,796.16 : x
  2. Step 2: Convert to fraction form
    18,967,699.84/28,450,546.08 = 5,321,796.16/x
  3. Step 3: Cross multiply
    18,967,699.84x = 28,450,546.08 × 5,321,796.16
  4. Step 4: Simplify right side
    18,967,699.84x = 151,408,006,878,447.06
  5. Step 5: Solve for x
    x = 151,408,006,878,447.06/18,967,699.84
  6. Step 6: Final answer
    x = 7,982,412.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.