Finding the Fourth Proportional to 177,178,129.80, 265,767,194.70 and 81,626,641.80
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Solution
The fourth proportional to 177,178,129.80, 265,767,194.70 and 81,626,641.80 is: 122,439,962.70
Step by Step Solution
- Step 1: Write the proportion equation
177,178,129.80 : 265,767,194.70 = 81,626,641.80 : x - Step 2: Convert to fraction form
177,178,129.80/265,767,194.70 = 81,626,641.80/x - Step 3: Cross multiply
177,178,129.80x = 265,767,194.70 × 81,626,641.80 - Step 4: Simplify right side
177,178,129.80x = 21,693,683,603,967,756 - Step 5: Solve for x
x = 21,693,683,603,967,756/177,178,129.80 - Step 6: Final answer
x = 122,439,962.70
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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.