Finding the Fourth Proportional to 128,733,491.54, 193,221,585.84 and 46,931,436.02
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Solution
The fourth proportional to 128,733,491.54, 193,221,585.84 and 46,931,436.02 is: 70,441,393.18
Step by Step Solution
- Step 1: Write the proportion equation
128,733,491.54 : 193,221,585.84 = 46,931,436.02 : x - Step 2: Convert to fraction form
128,733,491.54/193,221,585.84 = 46,931,436.02/x - Step 3: Cross multiply
128,733,491.54x = 193,221,585.84 × 46,931,436.02 - Step 4: Simplify right side
128,733,491.54x = 9,068,166,493,532,898 - Step 5: Solve for x
x = 9,068,166,493,532,898/128,733,491.54 - Step 6: Final answer
x = 70,441,393.18
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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.