Finding the Fourth Proportional to 78,805,117.30, 118,207,675.95 and 48,572,029.30
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Solution
The fourth proportional to 78,805,117.30, 118,207,675.95 and 48,572,029.30 is: 72,858,043.95
Step by Step Solution
- Step 1: Write the proportion equation
78,805,117.30 : 118,207,675.95 = 48,572,029.30 : x - Step 2: Convert to fraction form
78,805,117.30/118,207,675.95 = 48,572,029.30/x - Step 3: Cross multiply
78,805,117.30x = 118,207,675.95 × 48,572,029.30 - Step 4: Simplify right side
78,805,117.30x = 5,741,586,699,728,305 - Step 5: Solve for x
x = 5,741,586,699,728,305/78,805,117.30 - Step 6: Final answer
x = 72,858,043.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.