Finding the Fourth Proportional to 117,424,276.80, 176,136,415.20 and 40,721,812.80
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Solution
The fourth proportional to 117,424,276.80, 176,136,415.20 and 40,721,812.80 is: 61,082,719.20
Step by Step Solution
- Step 1: Write the proportion equation
117,424,276.80 : 176,136,415.20 = 40,721,812.80 : x - Step 2: Convert to fraction form
117,424,276.80/176,136,415.20 = 40,721,812.80/x - Step 3: Cross multiply
117,424,276.80x = 176,136,415.20 × 40,721,812.80 - Step 4: Simplify right side
117,424,276.80x = 7,172,594,127,037,474 - Step 5: Solve for x
x = 7,172,594,127,037,474/117,424,276.80 - Step 6: Final answer
x = 61,082,719.20
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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.