Finding the Fourth Proportional to 157,882,957.44, 217,867,420.68 and 91,798,767.35
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Solution
The fourth proportional to 157,882,957.44, 217,867,420.68 and 91,798,767.35 is: 126,675,867.92
Step by Step Solution
- Step 1: Write the proportion equation
157,882,957.44 : 217,867,420.68 = 91,798,767.35 : x - Step 2: Convert to fraction form
157,882,957.44/217,867,420.68 = 91,798,767.35/x - Step 3: Cross multiply
157,882,957.44x = 217,867,420.68 × 91,798,767.35 - Step 4: Simplify right side
157,882,957.44x = 19,999,960,664,147,900 - Step 5: Solve for x
x = 19,999,960,664,147,900/157,882,957.44 - Step 6: Final answer
x = 126,675,867.92
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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.