Finding the Fourth Proportional to 936,991,848.92, 1,292,294,791.41 and 823,719,146.90
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Solution
The fourth proportional to 936,991,848.92, 1,292,294,791.41 and 823,719,146.90 is: 1,136,069,608.66
Step by Step Solution
- Step 1: Write the proportion equation
936,991,848.92 : 1,292,294,791.41 = 823,719,146.90 : x - Step 2: Convert to fraction form
936,991,848.92/1,292,294,791.41 = 823,719,146.90/x - Step 3: Cross multiply
936,991,848.92x = 1,292,294,791.41 × 823,719,146.90 - Step 4: Simplify right side
936,991,848.92x = 1,064,487,963,123,558,656 - Step 5: Solve for x
x = 1,064,487,963,123,558,656/936,991,848.92 - Step 6: Final answer
x = 1,136,069,608.66
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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.