Home / 66,128,553.30-99,193,146.93-20,070,822.54

Finding the Fourth Proportional to 66,128,553.30, 99,193,146.93 and 20,070,822.54

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Solution

The fourth proportional to 66,128,553.30, 99,193,146.93 and 20,070,822.54 is: 30,106,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,128,553.30 : 99,193,146.93 = 20,070,822.54 : x
  2. Step 2: Convert to fraction form
    66,128,553.30/99,193,146.93 = 20,070,822.54/x
  3. Step 3: Cross multiply
    66,128,553.30x = 99,193,146.93 × 20,070,822.54
  4. Step 4: Simplify right side
    66,128,553.30x = 1,990,888,049,216,175.75
  5. Step 5: Solve for x
    x = 1,990,888,049,216,175.75/66,128,553.30
  6. Step 6: Final answer
    x = 30,106,330.02

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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.