Home / 7,146,162,185.05-9,861,975,900.11-3,974,575,441.15

Finding the Fourth Proportional to 7,146,162,185.05, 9,861,975,900.11 and 3,974,575,441.15

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Solution

The fourth proportional to 7,146,162,185.05, 9,861,975,900.11 and 3,974,575,441.15 is: 5,485,065,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146,162,185.05 : 9,861,975,900.11 = 3,974,575,441.15 : x
  2. Step 2: Convert to fraction form
    7,146,162,185.05/9,861,975,900.11 = 3,974,575,441.15/x
  3. Step 3: Cross multiply
    7,146,162,185.05x = 9,861,975,900.11 × 3,974,575,441.15
  4. Step 4: Simplify right side
    7,146,162,185.05x = 39,197,167,213,790,371,840
  5. Step 5: Solve for x
    x = 39,197,167,213,790,371,840/7,146,162,185.05
  6. Step 6: Final answer
    x = 5,485,065,437.75

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.