Home / 528,768,120.80-793,152,181.20-321,839,429.60

Finding the Fourth Proportional to 528,768,120.80, 793,152,181.20 and 321,839,429.60

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Solution

The fourth proportional to 528,768,120.80, 793,152,181.20 and 321,839,429.60 is: 482,759,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,768,120.80 : 793,152,181.20 = 321,839,429.60 : x
  2. Step 2: Convert to fraction form
    528,768,120.80/793,152,181.20 = 321,839,429.60/x
  3. Step 3: Cross multiply
    528,768,120.80x = 793,152,181.20 × 321,839,429.60
  4. Step 4: Simplify right side
    528,768,120.80x = 255,267,645,583,403,872
  5. Step 5: Solve for x
    x = 255,267,645,583,403,872/528,768,120.80
  6. Step 6: Final answer
    x = 482,759,144.40

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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.