Finding the Fourth Proportional to 85,339,381.83, 117,755,678.16 and 51,831,423.99
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Solution
The fourth proportional to 85,339,381.83, 117,755,678.16 and 51,831,423.99 is: 71,519,670.65
Step by Step Solution
- Step 1: Write the proportion equation
85,339,381.83 : 117,755,678.16 = 51,831,423.99 : x - Step 2: Convert to fraction form
85,339,381.83/117,755,678.16 = 51,831,423.99/x - Step 3: Cross multiply
85,339,381.83x = 117,755,678.16 × 51,831,423.99 - Step 4: Simplify right side
85,339,381.83x = 6,103,444,481,940,943 - Step 5: Solve for x
x = 6,103,444,481,940,943/85,339,381.83 - Step 6: Final answer
x = 71,519,670.65
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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.