Home / 808,218,002.80-1,212,327,004.20-349,052,978.80

Finding the Fourth Proportional to 808,218,002.80, 1,212,327,004.20 and 349,052,978.80

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Solution

The fourth proportional to 808,218,002.80, 1,212,327,004.20 and 349,052,978.80 is: 523,579,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,218,002.80 : 1,212,327,004.20 = 349,052,978.80 : x
  2. Step 2: Convert to fraction form
    808,218,002.80/1,212,327,004.20 = 349,052,978.80/x
  3. Step 3: Cross multiply
    808,218,002.80x = 1,212,327,004.20 × 349,052,978.80
  4. Step 4: Simplify right side
    808,218,002.80x = 423,166,352,095,690,112
  5. Step 5: Solve for x
    x = 423,166,352,095,690,112/808,218,002.80
  6. Step 6: Final answer
    x = 523,579,468.20

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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.