Finding the Fourth Proportional to 157,882,956.44, 217,867,419.30 and 91,798,766.35
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Solution
The fourth proportional to 157,882,956.44, 217,867,419.30 and 91,798,766.35 is: 126,675,866.54
Step by Step Solution
- Step 1: Write the proportion equation
157,882,956.44 : 217,867,419.30 = 91,798,766.35 : x - Step 2: Convert to fraction form
157,882,956.44/217,867,419.30 = 91,798,766.35/x - Step 3: Cross multiply
157,882,956.44x = 217,867,419.30 × 91,798,766.35 - Step 4: Simplify right side
157,882,956.44x = 19,999,960,319,598,180 - Step 5: Solve for x
x = 19,999,960,319,598,180/157,882,956.44 - Step 6: Final answer
x = 126,675,866.54
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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.