Home / 165,741,538.05-248,612,307.08-129,151,825.20

Finding the Fourth Proportional to 165,741,538.05, 248,612,307.08 and 129,151,825.20

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Solution

The fourth proportional to 165,741,538.05, 248,612,307.08 and 129,151,825.20 is: 193,727,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,741,538.05 : 248,612,307.08 = 129,151,825.20 : x
  2. Step 2: Convert to fraction form
    165,741,538.05/248,612,307.08 = 129,151,825.20/x
  3. Step 3: Cross multiply
    165,741,538.05x = 248,612,307.08 × 129,151,825.20
  4. Step 4: Simplify right side
    165,741,538.05x = 32,108,733,225,919,124
  5. Step 5: Solve for x
    x = 32,108,733,225,919,124/165,741,538.05
  6. Step 6: Final answer
    x = 193,727,737.80

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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.