Finding the Fourth Proportional to 234,156,591.68, 323,135,844.08 and 128,312,587.85
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Solution
The fourth proportional to 234,156,591.68, 323,135,844.08 and 128,312,587.85 is: 177,071,232.90
Step by Step Solution
- Step 1: Write the proportion equation
234,156,591.68 : 323,135,844.08 = 128,312,587.85 : x - Step 2: Convert to fraction form
234,156,591.68/323,135,844.08 = 128,312,587.85/x - Step 3: Cross multiply
234,156,591.68x = 323,135,844.08 × 128,312,587.85 - Step 4: Simplify right side
234,156,591.68x = 41,462,396,378,741,656 - Step 5: Solve for x
x = 41,462,396,378,741,656/234,156,591.68 - Step 6: Final answer
x = 177,071,232.90
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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.