Home / 863,138,615.20-1,294,707,922.80-494,294,941.60

Finding the Fourth Proportional to 863,138,615.20, 1,294,707,922.80 and 494,294,941.60

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Solution

The fourth proportional to 863,138,615.20, 1,294,707,922.80 and 494,294,941.60 is: 741,442,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,138,615.20 : 1,294,707,922.80 = 494,294,941.60 : x
  2. Step 2: Convert to fraction form
    863,138,615.20/1,294,707,922.80 = 494,294,941.60/x
  3. Step 3: Cross multiply
    863,138,615.20x = 1,294,707,922.80 × 494,294,941.60
  4. Step 4: Simplify right side
    863,138,615.20x = 639,967,577,089,483,264
  5. Step 5: Solve for x
    x = 639,967,577,089,483,264/863,138,615.20
  6. Step 6: Final answer
    x = 741,442,412.40

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Double scale
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1.5x scale

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.