Finding the Fourth Proportional to 348,480,921.80, 522,721,382.70 and 331,474,809.80
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Solution
The fourth proportional to 348,480,921.80, 522,721,382.70 and 331,474,809.80 is: 497,212,214.70
Step by Step Solution
- Step 1: Write the proportion equation
348,480,921.80 : 522,721,382.70 = 331,474,809.80 : x - Step 2: Convert to fraction form
348,480,921.80/522,721,382.70 = 331,474,809.80/x - Step 3: Cross multiply
348,480,921.80x = 522,721,382.70 × 331,474,809.80 - Step 4: Simplify right side
348,480,921.80x = 173,268,970,908,875,520 - Step 5: Solve for x
x = 173,268,970,908,875,520/348,480,921.80 - Step 6: Final answer
x = 497,212,214.70
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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.