Home / 13,673,850.50-18,869,760.81-7,479,075.20

Finding the Fourth Proportional to 13,673,850.50, 18,869,760.81 and 7,479,075.20

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Solution

The fourth proportional to 13,673,850.50, 18,869,760.81 and 7,479,075.20 is: 10,321,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673,850.50 : 18,869,760.81 = 7,479,075.20 : x
  2. Step 2: Convert to fraction form
    13,673,850.50/18,869,760.81 = 7,479,075.20/x
  3. Step 3: Cross multiply
    13,673,850.50x = 18,869,760.81 × 7,479,075.20
  4. Step 4: Simplify right side
    13,673,850.50x = 141,128,360,009,654.09
  5. Step 5: Solve for x
    x = 141,128,360,009,654.09/13,673,850.50
  6. Step 6: Final answer
    x = 10,321,040.15

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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.