Home / 7,146,162,182.67-9,861,975,896.83-3,974,575,438.77

Finding the Fourth Proportional to 7,146,162,182.67, 9,861,975,896.83 and 3,974,575,438.77

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Solution

The fourth proportional to 7,146,162,182.67, 9,861,975,896.83 and 3,974,575,438.77 is: 5,485,065,434.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146,162,182.67 : 9,861,975,896.83 = 3,974,575,438.77 : x
  2. Step 2: Convert to fraction form
    7,146,162,182.67/9,861,975,896.83 = 3,974,575,438.77/x
  3. Step 3: Cross multiply
    7,146,162,182.67x = 9,861,975,896.83 × 3,974,575,438.77
  4. Step 4: Simplify right side
    7,146,162,182.67x = 39,197,167,177,272,320,000
  5. Step 5: Solve for x
    x = 39,197,167,177,272,320,000/7,146,162,182.67
  6. Step 6: Final answer
    x = 5,485,065,434.47

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1.5x scale

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.