Home / 932,685,860.31-1,399,512,979.98-380,393,477.43

Finding the Fourth Proportional to 932,685,860.31, 1,399,512,979.98 and 380,393,477.43

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Solution

The fourth proportional to 932,685,860.31, 1,399,512,979.98 and 380,393,477.43 is: 570,787,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,685,860.31 : 1,399,512,979.98 = 380,393,477.43 : x
  2. Step 2: Convert to fraction form
    932,685,860.31/1,399,512,979.98 = 380,393,477.43/x
  3. Step 3: Cross multiply
    932,685,860.31x = 1,399,512,979.98 × 380,393,477.43
  4. Step 4: Simplify right side
    932,685,860.31x = 532,365,609,163,014,208
  5. Step 5: Solve for x
    x = 532,365,609,163,014,208/932,685,860.31
  6. Step 6: Final answer
    x = 570,787,691.57

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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.