Finding the Fourth Proportional to 128,733,497.56, 193,221,594.84 and 46,931,442.04
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Solution
The fourth proportional to 128,733,497.56, 193,221,594.84 and 46,931,442.04 is: 70,441,402.21
Step by Step Solution
- Step 1: Write the proportion equation
128,733,497.56 : 193,221,594.84 = 46,931,442.04 : x - Step 2: Convert to fraction form
128,733,497.56/193,221,594.84 = 46,931,442.04/x - Step 3: Cross multiply
128,733,497.56x = 193,221,594.84 × 46,931,442.04 - Step 4: Simplify right side
128,733,497.56x = 9,068,168,079,109,824 - Step 5: Solve for x
x = 9,068,168,079,109,824/128,733,497.56 - Step 6: Final answer
x = 70,441,402.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.