Finding the Fourth Proportional to 1,403,358,348.67, 1,936,324,910.07 and 830,857,127.42
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Solution
The fourth proportional to 1,403,358,348.67, 1,936,324,910.07 and 830,857,127.42 is: 1,146,399,530.86
Step by Step Solution
- Step 1: Write the proportion equation
1,403,358,348.67 : 1,936,324,910.07 = 830,857,127.42 : x - Step 2: Convert to fraction form
1,403,358,348.67/1,936,324,910.07 = 830,857,127.42/x - Step 3: Cross multiply
1,403,358,348.67x = 1,936,324,910.07 × 830,857,127.42 - Step 4: Simplify right side
1,403,358,348.67x = 1,608,809,352,537,390,848 - Step 5: Solve for x
x = 1,608,809,352,537,390,848/1,403,358,348.67 - Step 6: Final answer
x = 1,146,399,530.86
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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.