Home / 810,312,940.94-1,117,800,512.33-492,870,277.85

Finding the Fourth Proportional to 810,312,940.94, 1,117,800,512.33 and 492,870,277.85

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Solution

The fourth proportional to 810,312,940.94, 1,117,800,512.33 and 492,870,277.85 is: 679,898,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,312,940.94 : 1,117,800,512.33 = 492,870,277.85 : x
  2. Step 2: Convert to fraction form
    810,312,940.94/1,117,800,512.33 = 492,870,277.85/x
  3. Step 3: Cross multiply
    810,312,940.94x = 1,117,800,512.33 × 492,870,277.85
  4. Step 4: Simplify right side
    810,312,940.94x = 550,930,649,084,906,176
  5. Step 5: Solve for x
    x = 550,930,649,084,906,176/810,312,940.94
  6. Step 6: Final answer
    x = 679,898,618.49

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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.