Home / 528,300,806.40-792,451,209.60-331,880,212.80

Finding the Fourth Proportional to 528,300,806.40, 792,451,209.60 and 331,880,212.80

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Solution

The fourth proportional to 528,300,806.40, 792,451,209.60 and 331,880,212.80 is: 497,820,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,300,806.40 : 792,451,209.60 = 331,880,212.80 : x
  2. Step 2: Convert to fraction form
    528,300,806.40/792,451,209.60 = 331,880,212.80/x
  3. Step 3: Cross multiply
    528,300,806.40x = 792,451,209.60 × 331,880,212.80
  4. Step 4: Simplify right side
    528,300,806.40x = 262,998,876,075,665,408
  5. Step 5: Solve for x
    x = 262,998,876,075,665,408/528,300,806.40
  6. Step 6: Final answer
    x = 497,820,319.20

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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.