Home / 528,624,005.60-792,936,008.40-321,999,744.80

Finding the Fourth Proportional to 528,624,005.60, 792,936,008.40 and 321,999,744.80

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Solution

The fourth proportional to 528,624,005.60, 792,936,008.40 and 321,999,744.80 is: 482,999,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,624,005.60 : 792,936,008.40 = 321,999,744.80 : x
  2. Step 2: Convert to fraction form
    528,624,005.60/792,936,008.40 = 321,999,744.80/x
  3. Step 3: Cross multiply
    528,624,005.60x = 792,936,008.40 × 321,999,744.80
  4. Step 4: Simplify right side
    528,624,005.60x = 255,325,192,347,530,656
  5. Step 5: Solve for x
    x = 255,325,192,347,530,656/528,624,005.60
  6. Step 6: Final answer
    x = 482,999,617.20

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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.