Finding the Fourth Proportional to 317,215,945.67, 437,759,264.73 and 177,977,616.35
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Solution
The fourth proportional to 317,215,945.67, 437,759,264.73 and 177,977,616.35 is: 245,609,817.34
Step by Step Solution
- Step 1: Write the proportion equation
317,215,945.67 : 437,759,264.73 = 177,977,616.35 : x - Step 2: Convert to fraction form
317,215,945.67/437,759,264.73 = 177,977,616.35/x - Step 3: Cross multiply
317,215,945.67x = 437,759,264.73 × 177,977,616.35 - Step 4: Simplify right side
317,215,945.67x = 77,911,350,471,774,032 - Step 5: Solve for x
x = 77,911,350,471,774,032/317,215,945.67 - Step 6: Final answer
x = 245,609,817.34
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1.5x scale
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.