Finding the Fourth Proportional to 158,005,811.58, 218,048,340.06 and 88,392,354.99
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Solution
The fourth proportional to 158,005,811.58, 218,048,340.06 and 88,392,354.99 is: 121,981,628.95
Step by Step Solution
- Step 1: Write the proportion equation
158,005,811.58 : 218,048,340.06 = 88,392,354.99 : x - Step 2: Convert to fraction form
158,005,811.58/218,048,340.06 = 88,392,354.99/x - Step 3: Cross multiply
158,005,811.58x = 218,048,340.06 × 88,392,354.99 - Step 4: Simplify right side
158,005,811.58x = 19,273,806,279,563,756 - Step 5: Solve for x
x = 19,273,806,279,563,756/158,005,811.58 - Step 6: Final answer
x = 121,981,628.95
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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.