Finding the Fourth Proportional to 291,639,781.80, 437,459,672.70 and 291,639,781.80
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Solution
The fourth proportional to 291,639,781.80, 437,459,672.70 and 291,639,781.80 is: 437,459,672.70
Step by Step Solution
- Step 1: Write the proportion equation
291,639,781.80 : 437,459,672.70 = 291,639,781.80 : x - Step 2: Convert to fraction form
291,639,781.80/437,459,672.70 = 291,639,781.80/x - Step 3: Cross multiply
291,639,781.80x = 437,459,672.70 × 291,639,781.80 - Step 4: Simplify right side
291,639,781.80x = 127,580,643,492,527,424 - Step 5: Solve for x
x = 127,580,643,492,527,424/291,639,781.80 - Step 6: Final answer
x = 437,459,672.70
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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.