Finding the Fourth Proportional to 158,005,580.58, 218,048,020.07 and 88,392,123.99
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Solution
The fourth proportional to 158,005,580.58, 218,048,020.07 and 88,392,123.99 is: 121,981,309.49
Step by Step Solution
- Step 1: Write the proportion equation
158,005,580.58 : 218,048,020.07 = 88,392,123.99 : x - Step 2: Convert to fraction form
158,005,580.58/218,048,020.07 = 88,392,123.99/x - Step 3: Cross multiply
158,005,580.58x = 218,048,020.07 × 88,392,123.99 - Step 4: Simplify right side
158,005,580.58x = 19,273,727,625,359,488 - Step 5: Solve for x
x = 19,273,727,625,359,488/158,005,580.58 - Step 6: Final answer
x = 121,981,309.49
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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.