Home / 255,303,777.30-382,388,795.55-209,954,145.30

Finding the Fourth Proportional to 255,303,777.30, 382,388,795.55 and 209,954,145.30

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Solution

The fourth proportional to 255,303,777.30, 382,388,795.55 and 209,954,145.30 is: 314,465,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,303,777.30 : 382,388,795.55 = 209,954,145.30 : x
  2. Step 2: Convert to fraction form
    255,303,777.30/382,388,795.55 = 209,954,145.30/x
  3. Step 3: Cross multiply
    255,303,777.30x = 382,388,795.55 × 209,954,145.30
  4. Step 4: Simplify right side
    255,303,777.30x = 80,284,112,741,996,704
  5. Step 5: Solve for x
    x = 80,284,112,741,996,704/255,303,777.30
  6. Step 6: Final answer
    x = 314,465,040.79

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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.