Home / 257,235,732,251.28-385,789,447,151.28-75,682,438,400.16

Finding the Fourth Proportional to 257,235,732,251.28, 385,789,447,151.28 and 75,682,438,400.16

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Solution

The fourth proportional to 257,235,732,251.28, 385,789,447,151.28 and 75,682,438,400.16 is: 113,504,783,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,235,732,251.28 : 385,789,447,151.28 = 75,682,438,400.16 : x
  2. Step 2: Convert to fraction form
    257,235,732,251.28/385,789,447,151.28 = 75,682,438,400.16/x
  3. Step 3: Cross multiply
    257,235,732,251.28x = 385,789,447,151.28 × 75,682,438,400.16
  4. Step 4: Simplify right side
    257,235,732,251.28x = 29,197,486,069,458,535,448,576
  5. Step 5: Solve for x
    x = 29,197,486,069,458,535,448,576/257,235,732,251.28
  6. Step 6: Final answer
    x = 113,504,783,390.42

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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.