Home / 862,217,418.25-1,189,860,558.44-465,740,582.95

Finding the Fourth Proportional to 862,217,418.25, 1,189,860,558.44 and 465,740,582.95

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Solution

The fourth proportional to 862,217,418.25, 1,189,860,558.44 and 465,740,582.95 is: 642,722,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,217,418.25 : 1,189,860,558.44 = 465,740,582.95 : x
  2. Step 2: Convert to fraction form
    862,217,418.25/1,189,860,558.44 = 465,740,582.95/x
  3. Step 3: Cross multiply
    862,217,418.25x = 1,189,860,558.44 × 465,740,582.95
  4. Step 4: Simplify right side
    862,217,418.25x = 554,166,350,117,058,176
  5. Step 5: Solve for x
    x = 554,166,350,117,058,176/862,217,418.25
  6. Step 6: Final answer
    x = 642,722,286.04

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Double scale
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1.5x scale

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.