Finding the Fourth Proportional to 135,999,921.92, 203,979,953.05 and 66,894,175.98
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Solution
The fourth proportional to 135,999,921.92, 203,979,953.05 and 66,894,175.98 is: 100,331,461.10
Step by Step Solution
- Step 1: Write the proportion equation
135,999,921.92 : 203,979,953.05 = 66,894,175.98 : x - Step 2: Convert to fraction form
135,999,921.92/203,979,953.05 = 66,894,175.98/x - Step 3: Cross multiply
135,999,921.92x = 203,979,953.05 × 66,894,175.98 - Step 4: Simplify right side
135,999,921.92x = 13,645,070,875,551,602 - Step 5: Solve for x
x = 13,645,070,875,551,602/135,999,921.92 - Step 6: Final answer
x = 100,331,461.10
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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.