Home / 525,313,390.80-787,970,086.20-318,384,699.60

Finding the Fourth Proportional to 525,313,390.80, 787,970,086.20 and 318,384,699.60

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Solution

The fourth proportional to 525,313,390.80, 787,970,086.20 and 318,384,699.60 is: 477,577,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,313,390.80 : 787,970,086.20 = 318,384,699.60 : x
  2. Step 2: Convert to fraction form
    525,313,390.80/787,970,086.20 = 318,384,699.60/x
  3. Step 3: Cross multiply
    525,313,390.80x = 787,970,086.20 × 318,384,699.60
  4. Step 4: Simplify right side
    525,313,390.80x = 250,877,619,188,573,152
  5. Step 5: Solve for x
    x = 250,877,619,188,573,152/525,313,390.80
  6. Step 6: Final answer
    x = 477,577,049.40

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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.