Home / 932,685,863.80-1,399,512,985.22-380,393,480.92

Finding the Fourth Proportional to 932,685,863.80, 1,399,512,985.22 and 380,393,480.92

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Solution

The fourth proportional to 932,685,863.80, 1,399,512,985.22 and 380,393,480.92 is: 570,787,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,685,863.80 : 1,399,512,985.22 = 380,393,480.92 : x
  2. Step 2: Convert to fraction form
    932,685,863.80/1,399,512,985.22 = 380,393,480.92/x
  3. Step 3: Cross multiply
    932,685,863.80x = 1,399,512,985.22 × 380,393,480.92
  4. Step 4: Simplify right side
    932,685,863.80x = 532,365,616,040,576,320
  5. Step 5: Solve for x
    x = 532,365,616,040,576,320/932,685,863.80
  6. Step 6: Final answer
    x = 570,787,696.80

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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.