Finding the Fourth Proportional to 135,965,010.54, 204,007,801.68 and 71,253,430.14
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Solution
The fourth proportional to 135,965,010.54, 204,007,801.68 and 71,253,430.14 is: 106,911,738.45
Step by Step Solution
- Step 1: Write the proportion equation
135,965,010.54 : 204,007,801.68 = 71,253,430.14 : x - Step 2: Convert to fraction form
135,965,010.54/204,007,801.68 = 71,253,430.14/x - Step 3: Cross multiply
135,965,010.54x = 204,007,801.68 × 71,253,430.14 - Step 4: Simplify right side
135,965,010.54x = 14,536,255,645,020,856 - Step 5: Solve for x
x = 14,536,255,645,020,856/135,965,010.54 - Step 6: Final answer
x = 106,911,738.45
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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.