Home / 984,819,986.42-1,477,228,158.22-320,833,213.36

Finding the Fourth Proportional to 984,819,986.42, 1,477,228,158.22 and 320,833,213.36

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Solution

The fourth proportional to 984,819,986.42, 1,477,228,158.22 and 320,833,213.36 is: 481,249,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,819,986.42 : 1,477,228,158.22 = 320,833,213.36 : x
  2. Step 2: Convert to fraction form
    984,819,986.42/1,477,228,158.22 = 320,833,213.36/x
  3. Step 3: Cross multiply
    984,819,986.42x = 1,477,228,158.22 × 320,833,213.36
  4. Step 4: Simplify right side
    984,819,986.42x = 473,943,856,861,599,040
  5. Step 5: Solve for x
    x = 473,943,856,861,599,040/984,819,986.42
  6. Step 6: Final answer
    x = 481,249,226.66

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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.