Finding the Fourth Proportional to 210,777,965.10, 290,867,344.47 and 116,696,305.53
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Solution
The fourth proportional to 210,777,965.10, 290,867,344.47 and 116,696,305.53 is: 161,037,442.80
Step by Step Solution
- Step 1: Write the proportion equation
210,777,965.10 : 290,867,344.47 = 116,696,305.53 : x - Step 2: Convert to fraction form
210,777,965.10/290,867,344.47 = 116,696,305.53/x - Step 3: Cross multiply
210,777,965.10x = 290,867,344.47 × 116,696,305.53 - Step 4: Simplify right side
210,777,965.10x = 33,943,144,498,970,880 - Step 5: Solve for x
x = 33,943,144,498,970,880/210,777,965.10 - Step 6: Final answer
x = 161,037,442.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.