Home / 18,670,448.49-27,989,698.85-7,164,173.01

Finding the Fourth Proportional to 18,670,448.49, 27,989,698.85 and 7,164,173.01

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Solution

The fourth proportional to 18,670,448.49, 27,989,698.85 and 7,164,173.01 is: 10,740,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670,448.49 : 27,989,698.85 = 7,164,173.01 : x
  2. Step 2: Convert to fraction form
    18,670,448.49/27,989,698.85 = 7,164,173.01/x
  3. Step 3: Cross multiply
    18,670,448.49x = 27,989,698.85 × 7,164,173.01
  4. Step 4: Simplify right side
    18,670,448.49x = 200,523,045,023,377.16
  5. Step 5: Solve for x
    x = 200,523,045,023,377.16/18,670,448.49
  6. Step 6: Final answer
    x = 10,740,130.06

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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.