Finding the Fourth Proportional to 211,012,388.10, 316,574,569.35 and 74,683,556.10
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Solution
The fourth proportional to 211,012,388.10, 316,574,569.35 and 74,683,556.10 is: 112,045,149.68
Step by Step Solution
- Step 1: Write the proportion equation
211,012,388.10 : 316,574,569.35 = 74,683,556.10 : x - Step 2: Convert to fraction form
211,012,388.10/316,574,569.35 = 74,683,556.10/x - Step 3: Cross multiply
211,012,388.10x = 316,574,569.35 × 74,683,556.10 - Step 4: Simplify right side
211,012,388.10x = 23,642,914,609,884,064 - Step 5: Solve for x
x = 23,642,914,609,884,064/211,012,388.10 - Step 6: Final answer
x = 112,045,149.68
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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.