Finding the Fourth Proportional to 211,575,426.68, 317,218,256.12 and 107,743,643.21
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Solution
The fourth proportional to 211,575,426.68, 317,218,256.12 and 107,743,643.21 is: 161,541,683.47
Step by Step Solution
- Step 1: Write the proportion equation
211,575,426.68 : 317,218,256.12 = 107,743,643.21 : x - Step 2: Convert to fraction form
211,575,426.68/317,218,256.12 = 107,743,643.21/x - Step 3: Cross multiply
211,575,426.68x = 317,218,256.12 × 107,743,643.21 - Step 4: Simplify right side
211,575,426.68x = 34,178,250,608,154,084 - Step 5: Solve for x
x = 34,178,250,608,154,084/211,575,426.68 - Step 6: Final answer
x = 161,541,683.47
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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.