Finding the Fourth Proportional to 128,319,590.74, 192,490,696.94 and 36,204,135.70
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Solution
The fourth proportional to 128,319,590.74, 192,490,696.94 and 36,204,135.70 is: 54,309,394.79
Step by Step Solution
- Step 1: Write the proportion equation
128,319,590.74 : 192,490,696.94 = 36,204,135.70 : x - Step 2: Convert to fraction form
128,319,590.74/192,490,696.94 = 36,204,135.70/x - Step 3: Cross multiply
128,319,590.74x = 192,490,696.94 × 36,204,135.70 - Step 4: Simplify right side
128,319,590.74x = 6,968,959,313,003,335 - Step 5: Solve for x
x = 6,968,959,313,003,335/128,319,590.74 - Step 6: Final answer
x = 54,309,394.79
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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.