Finding the Fourth Proportional to 155,323,759.91, 214,351,344.06 and 84,763,925.96
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Solution
The fourth proportional to 155,323,759.91, 214,351,344.06 and 84,763,925.96 is: 116,976,703.81
Step by Step Solution
- Step 1: Write the proportion equation
155,323,759.91 : 214,351,344.06 = 84,763,925.96 : x - Step 2: Convert to fraction form
155,323,759.91/214,351,344.06 = 84,763,925.96/x - Step 3: Cross multiply
155,323,759.91x = 214,351,344.06 × 84,763,925.96 - Step 4: Simplify right side
155,323,759.91x = 18,169,261,457,378,252 - Step 5: Solve for x
x = 18,169,261,457,378,252/155,323,759.91 - Step 6: Final answer
x = 116,976,703.81
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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.