Finding the Fourth Proportional to 135,418,116.66, 202,835,319.53 and 91,457,138.51
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Solution
The fourth proportional to 135,418,116.66, 202,835,319.53 and 91,457,138.51 is: 136,988,597.75
Step by Step Solution
- Step 1: Write the proportion equation
135,418,116.66 : 202,835,319.53 = 91,457,138.51 : x - Step 2: Convert to fraction form
135,418,116.66/202,835,319.53 = 91,457,138.51/x - Step 3: Cross multiply
135,418,116.66x = 202,835,319.53 × 91,457,138.51 - Step 4: Simplify right side
135,418,116.66x = 18,550,737,911,503,856 - Step 5: Solve for x
x = 18,550,737,911,503,856/135,418,116.66 - Step 6: Final answer
x = 136,988,597.75
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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.