Finding the Fourth Proportional to 2,179,099,220.74, 3,268,627,290.76 and 998,344,776.31
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Solution
The fourth proportional to 2,179,099,220.74, 3,268,627,290.76 and 998,344,776.31 is: 1,497,507,295.85
Step by Step Solution
- Step 1: Write the proportion equation
2,179,099,220.74 : 3,268,627,290.76 = 998,344,776.31 : x - Step 2: Convert to fraction form
2,179,099,220.74/3,268,627,290.76 = 998,344,776.31/x - Step 3: Cross multiply
2,179,099,220.74x = 3,268,627,290.76 × 998,344,776.31 - Step 4: Simplify right side
2,179,099,220.74x = 3,263,216,981,434,553,344 - Step 5: Solve for x
x = 3,263,216,981,434,553,344/2,179,099,220.74 - Step 6: Final answer
x = 1,497,507,295.85
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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.