Home / 111,909,720.20-167,864,580.30-66,448,113.80

Finding the Fourth Proportional to 111,909,720.20, 167,864,580.30 and 66,448,113.80

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Solution

The fourth proportional to 111,909,720.20, 167,864,580.30 and 66,448,113.80 is: 99,672,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,909,720.20 : 167,864,580.30 = 66,448,113.80 : x
  2. Step 2: Convert to fraction form
    111,909,720.20/167,864,580.30 = 66,448,113.80/x
  3. Step 3: Cross multiply
    111,909,720.20x = 167,864,580.30 × 66,448,113.80
  4. Step 4: Simplify right side
    111,909,720.20x = 11,154,284,734,763,638
  5. Step 5: Solve for x
    x = 11,154,284,734,763,638/111,909,720.20
  6. Step 6: Final answer
    x = 99,672,170.70

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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.