Home / 18,670,447.74-27,989,697.72-7,164,172.26

Finding the Fourth Proportional to 18,670,447.74, 27,989,697.72 and 7,164,172.26

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Solution

The fourth proportional to 18,670,447.74, 27,989,697.72 and 7,164,172.26 is: 10,740,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670,447.74 : 27,989,697.72 = 7,164,172.26 : x
  2. Step 2: Convert to fraction form
    18,670,447.74/27,989,697.72 = 7,164,172.26/x
  3. Step 3: Cross multiply
    18,670,447.74x = 27,989,697.72 × 7,164,172.26
  4. Step 4: Simplify right side
    18,670,447.74x = 200,523,015,971,409.22
  5. Step 5: Solve for x
    x = 200,523,015,971,409.22/18,670,447.74
  6. Step 6: Final answer
    x = 10,740,128.93

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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.