Home / 209,843,408.40-314,765,112.60-73,511,077.20

Finding the Fourth Proportional to 209,843,408.40, 314,765,112.60 and 73,511,077.20

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Solution

The fourth proportional to 209,843,408.40, 314,765,112.60 and 73,511,077.20 is: 110,266,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,843,408.40 : 314,765,112.60 = 73,511,077.20 : x
  2. Step 2: Convert to fraction form
    209,843,408.40/314,765,112.60 = 73,511,077.20/x
  3. Step 3: Cross multiply
    209,843,408.40x = 314,765,112.60 × 73,511,077.20
  4. Step 4: Simplify right side
    209,843,408.40x = 23,138,722,492,205,296
  5. Step 5: Solve for x
    x = 23,138,722,492,205,296/209,843,408.40
  6. Step 6: Final answer
    x = 110,266,615.80

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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.