Home / 821,554,147.28-1,232,388,184.98-330,267,611.81

Finding the Fourth Proportional to 821,554,147.28, 1,232,388,184.98 and 330,267,611.81

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Solution

The fourth proportional to 821,554,147.28, 1,232,388,184.98 and 330,267,611.81 is: 495,424,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,554,147.28 : 1,232,388,184.98 = 330,267,611.81 : x
  2. Step 2: Convert to fraction form
    821,554,147.28/1,232,388,184.98 = 330,267,611.81/x
  3. Step 3: Cross multiply
    821,554,147.28x = 1,232,388,184.98 × 330,267,611.81
  4. Step 4: Simplify right side
    821,554,147.28x = 407,017,902,670,043,200
  5. Step 5: Solve for x
    x = 407,017,902,670,043,200/821,554,147.28
  6. Step 6: Final answer
    x = 495,424,317.46

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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.