Home / 9,978,938.70-14,968,408.05-8,969,200.80

Finding the Fourth Proportional to 9,978,938.70, 14,968,408.05 and 8,969,200.80

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Solution

The fourth proportional to 9,978,938.70, 14,968,408.05 and 8,969,200.80 is: 13,453,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,938.70 : 14,968,408.05 = 8,969,200.80 : x
  2. Step 2: Convert to fraction form
    9,978,938.70/14,968,408.05 = 8,969,200.80/x
  3. Step 3: Cross multiply
    9,978,938.70x = 14,968,408.05 × 8,969,200.80
  4. Step 4: Simplify right side
    9,978,938.70x = 134,254,657,456,786.45
  5. Step 5: Solve for x
    x = 134,254,657,456,786.45/9,978,938.70
  6. Step 6: Final answer
    x = 13,453,801.20

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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.