Finding the Fourth Proportional to 117,424,307.80, 176,136,461.70 and 40,721,843.80
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Solution
The fourth proportional to 117,424,307.80, 176,136,461.70 and 40,721,843.80 is: 61,082,765.70
Step by Step Solution
- Step 1: Write the proportion equation
117,424,307.80 : 176,136,461.70 = 40,721,843.80 : x - Step 2: Convert to fraction form
117,424,307.80/176,136,461.70 = 40,721,843.80/x - Step 3: Cross multiply
117,424,307.80x = 176,136,461.70 × 40,721,843.80 - Step 4: Simplify right side
117,424,307.80x = 7,172,601,480,832,081 - Step 5: Solve for x
x = 7,172,601,480,832,081/117,424,307.80 - Step 6: Final answer
x = 61,082,765.70
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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.