Finding the Fourth Proportional to 303,438,690.63, 418,746,669.84 and 164,209,459.23
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Solution
The fourth proportional to 303,438,690.63, 418,746,669.84 and 164,209,459.23 is: 226,609,744.68
Step by Step Solution
- Step 1: Write the proportion equation
303,438,690.63 : 418,746,669.84 = 164,209,459.23 : x - Step 2: Convert to fraction form
303,438,690.63/418,746,669.84 = 164,209,459.23/x - Step 3: Cross multiply
303,438,690.63x = 418,746,669.84 × 164,209,459.23 - Step 4: Simplify right side
303,438,690.63x = 68,762,164,208,789,744 - Step 5: Solve for x
x = 68,762,164,208,789,744/303,438,690.63 - Step 6: Final answer
x = 226,609,744.68
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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.