Finding the Fourth Proportional to 936,991,372.63, 1,292,294,135.60 and 823,718,671.01
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Solution
The fourth proportional to 936,991,372.63, 1,292,294,135.60 and 823,718,671.01 is: 1,136,068,953.27
Step by Step Solution
- Step 1: Write the proportion equation
936,991,372.63 : 1,292,294,135.60 = 823,718,671.01 : x - Step 2: Convert to fraction form
936,991,372.63/1,292,294,135.60 = 823,718,671.01/x - Step 3: Cross multiply
936,991,372.63x = 1,292,294,135.60 × 823,718,671.01 - Step 4: Simplify right side
936,991,372.63x = 1,064,486,807,933,200,000 - Step 5: Solve for x
x = 1,064,486,807,933,200,000/936,991,372.63 - Step 6: Final answer
x = 1,136,068,953.27
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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.