Home / 111,909,709.20-167,864,563.80-66,448,102.80

Finding the Fourth Proportional to 111,909,709.20, 167,864,563.80 and 66,448,102.80

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Solution

The fourth proportional to 111,909,709.20, 167,864,563.80 and 66,448,102.80 is: 99,672,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,909,709.20 : 167,864,563.80 = 66,448,102.80 : x
  2. Step 2: Convert to fraction form
    111,909,709.20/167,864,563.80 = 66,448,102.80/x
  3. Step 3: Cross multiply
    111,909,709.20x = 167,864,563.80 × 66,448,102.80
  4. Step 4: Simplify right side
    111,909,709.20x = 11,154,281,791,859,558
  5. Step 5: Solve for x
    x = 11,154,281,791,859,558/111,909,709.20
  6. Step 6: Final answer
    x = 99,672,154.20

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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.