Home / 932,989,791.15-1,399,489,917.71-311,203,315.71

Finding the Fourth Proportional to 932,989,791.15, 1,399,489,917.71 and 311,203,315.71

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Solution

The fourth proportional to 932,989,791.15, 1,399,489,917.71 and 311,203,315.71 is: 466,806,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,989,791.15 : 1,399,489,917.71 = 311,203,315.71 : x
  2. Step 2: Convert to fraction form
    932,989,791.15/1,399,489,917.71 = 311,203,315.71/x
  3. Step 3: Cross multiply
    932,989,791.15x = 1,399,489,917.71 × 311,203,315.71
  4. Step 4: Simplify right side
    932,989,791.15x = 435,525,902,692,510,976
  5. Step 5: Solve for x
    x = 435,525,902,692,510,976/932,989,791.15
  6. Step 6: Final answer
    x = 466,806,718.38

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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.