Finding the Fourth Proportional to 128,319,588.73, 192,490,693.94 and 36,204,133.69
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Solution
The fourth proportional to 128,319,588.73, 192,490,693.94 and 36,204,133.69 is: 54,309,391.78
Step by Step Solution
- Step 1: Write the proportion equation
128,319,588.73 : 192,490,693.94 = 36,204,133.69 : x - Step 2: Convert to fraction form
128,319,588.73/192,490,693.94 = 36,204,133.69/x - Step 3: Cross multiply
128,319,588.73x = 192,490,693.94 × 36,204,133.69 - Step 4: Simplify right side
128,319,588.73x = 6,968,958,817,484,632 - Step 5: Solve for x
x = 6,968,958,817,484,632/128,319,588.73 - Step 6: Final answer
x = 54,309,391.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.