Home / 787,093,629.58-1,086,216,012.51-465,497,275.31

Finding the Fourth Proportional to 787,093,629.58, 1,086,216,012.51 and 465,497,275.31

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Solution

The fourth proportional to 787,093,629.58, 1,086,216,012.51 and 465,497,275.31 is: 642,402,091.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,093,629.58 : 1,086,216,012.51 = 465,497,275.31 : x
  2. Step 2: Convert to fraction form
    787,093,629.58/1,086,216,012.51 = 465,497,275.31/x
  3. Step 3: Cross multiply
    787,093,629.58x = 1,086,216,012.51 × 465,497,275.31
  4. Step 4: Simplify right side
    787,093,629.58x = 505,630,594,221,497,856
  5. Step 5: Solve for x
    x = 505,630,594,221,497,856/787,093,629.58
  6. Step 6: Final answer
    x = 642,402,091.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.