Finding the Fourth Proportional to 85,640,511.75, 118,184,036.09 and 46,482,302.81
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Solution
The fourth proportional to 85,640,511.75, 118,184,036.09 and 46,482,302.81 is: 64,145,648.36
Step by Step Solution
- Step 1: Write the proportion equation
85,640,511.75 : 118,184,036.09 = 46,482,302.81 : x - Step 2: Convert to fraction form
85,640,511.75/118,184,036.09 = 46,482,302.81/x - Step 3: Cross multiply
85,640,511.75x = 118,184,036.09 × 46,482,302.81 - Step 4: Simplify right side
85,640,511.75x = 5,493,466,152,020,016 - Step 5: Solve for x
x = 5,493,466,152,020,016/85,640,511.75 - Step 6: Final answer
x = 64,145,648.36
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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.