Home / 622,758,911.80-934,138,367.70-393,435,340.60

Finding the Fourth Proportional to 622,758,911.80, 934,138,367.70 and 393,435,340.60

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Solution

The fourth proportional to 622,758,911.80, 934,138,367.70 and 393,435,340.60 is: 590,153,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,758,911.80 : 934,138,367.70 = 393,435,340.60 : x
  2. Step 2: Convert to fraction form
    622,758,911.80/934,138,367.70 = 393,435,340.60/x
  3. Step 3: Cross multiply
    622,758,911.80x = 934,138,367.70 × 393,435,340.60
  4. Step 4: Simplify right side
    622,758,911.80x = 367,523,046,863,577,600
  5. Step 5: Solve for x
    x = 367,523,046,863,577,600/622,758,911.80
  6. Step 6: Final answer
    x = 590,153,010.90

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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.