Home / 100,505,428.20-150,758,142.30-66,068,051.40

Finding the Fourth Proportional to 100,505,428.20, 150,758,142.30 and 66,068,051.40

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Solution

The fourth proportional to 100,505,428.20, 150,758,142.30 and 66,068,051.40 is: 99,102,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,505,428.20 : 150,758,142.30 = 66,068,051.40 : x
  2. Step 2: Convert to fraction form
    100,505,428.20/150,758,142.30 = 66,068,051.40/x
  3. Step 3: Cross multiply
    100,505,428.20x = 150,758,142.30 × 66,068,051.40
  4. Step 4: Simplify right side
    100,505,428.20x = 9,960,296,694,444,914
  5. Step 5: Solve for x
    x = 9,960,296,694,444,914/100,505,428.20
  6. Step 6: Final answer
    x = 99,102,077.10

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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.