Home / 398,604,907.20-597,907,360.80-355,522,756.80

Finding the Fourth Proportional to 398,604,907.20, 597,907,360.80 and 355,522,756.80

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Solution

The fourth proportional to 398,604,907.20, 597,907,360.80 and 355,522,756.80 is: 533,284,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,604,907.20 : 597,907,360.80 = 355,522,756.80 : x
  2. Step 2: Convert to fraction form
    398,604,907.20/597,907,360.80 = 355,522,756.80/x
  3. Step 3: Cross multiply
    398,604,907.20x = 597,907,360.80 × 355,522,756.80
  4. Step 4: Simplify right side
    398,604,907.20x = 212,569,673,222,628,256
  5. Step 5: Solve for x
    x = 212,569,673,222,628,256/398,604,907.20
  6. Step 6: Final answer
    x = 533,284,135.20

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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.