Finding the Fourth Proportional to 128,262,088.62, 192,390,437.45 and 31,218,337.62
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Solution
The fourth proportional to 128,262,088.62, 192,390,437.45 and 31,218,337.62 is: 46,826,850.36
Step by Step Solution
- Step 1: Write the proportion equation
128,262,088.62 : 192,390,437.45 = 31,218,337.62 : x - Step 2: Convert to fraction form
128,262,088.62/192,390,437.45 = 31,218,337.62/x - Step 3: Cross multiply
128,262,088.62x = 192,390,437.45 × 31,218,337.62 - Step 4: Simplify right side
128,262,088.62x = 6,006,109,631,251,637 - Step 5: Solve for x
x = 6,006,109,631,251,637/128,262,088.62 - Step 6: Final answer
x = 46,826,850.36
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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.