Finding the Fourth Proportional to 627,379,992.07, 865,779,601.47 and 345,116,354.99
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Solution
The fourth proportional to 627,379,992.07, 865,779,601.47 and 345,116,354.99 is: 476,257,936.28
Step by Step Solution
- Step 1: Write the proportion equation
627,379,992.07 : 865,779,601.47 = 345,116,354.99 : x - Step 2: Convert to fraction form
627,379,992.07/865,779,601.47 = 345,116,354.99/x - Step 3: Cross multiply
627,379,992.07x = 865,779,601.47 × 345,116,354.99 - Step 4: Simplify right side
627,379,992.07x = 298,794,700,284,021,248 - Step 5: Solve for x
x = 298,794,700,284,021,248/627,379,992.07 - Step 6: Final answer
x = 476,257,936.28
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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.