Finding the Fourth Proportional to 389,640,748.41, 537,554,565.32 and 222,386,292.99
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Solution
The fourth proportional to 389,640,748.41, 537,554,565.32 and 222,386,292.99 is: 306,807,662.05
Step by Step Solution
- Step 1: Write the proportion equation
389,640,748.41 : 537,554,565.32 = 222,386,292.99 : x - Step 2: Convert to fraction form
389,640,748.41/537,554,565.32 = 222,386,292.99/x - Step 3: Cross multiply
389,640,748.41x = 537,554,565.32 × 222,386,292.99 - Step 4: Simplify right side
389,640,748.41x = 119,544,767,060,253,696 - Step 5: Solve for x
x = 119,544,767,060,253,696/389,640,748.41 - Step 6: Final answer
x = 306,807,662.05
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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.