Finding the Fourth Proportional to 2,153,790,556.62, 2,972,230,973.85 and 1,163,715,973.62
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Solution
The fourth proportional to 2,153,790,556.62, 2,972,230,973.85 and 1,163,715,973.62 is: 1,605,928,046.68
Step by Step Solution
- Step 1: Write the proportion equation
2,153,790,556.62 : 2,972,230,973.85 = 1,163,715,973.62 : x - Step 2: Convert to fraction form
2,153,790,556.62/2,972,230,973.85 = 1,163,715,973.62/x - Step 3: Cross multiply
2,153,790,556.62x = 2,972,230,973.85 × 1,163,715,973.62 - Step 4: Simplify right side
2,153,790,556.62x = 3,458,832,661,557,372,928 - Step 5: Solve for x
x = 3,458,832,661,557,372,928/2,153,790,556.62 - Step 6: Final answer
x = 1,605,928,046.68
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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.