Finding the Fourth Proportional to 497,590,201.51, 686,689,048.37 and 271,543,750.79
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Solution
The fourth proportional to 497,590,201.51, 686,689,048.37 and 271,543,750.79 is: 374,738,327.35
Step by Step Solution
- Step 1: Write the proportion equation
497,590,201.51 : 686,689,048.37 = 271,543,750.79 : x - Step 2: Convert to fraction form
497,590,201.51/686,689,048.37 = 271,543,750.79/x - Step 3: Cross multiply
497,590,201.51x = 686,689,048.37 × 271,543,750.79 - Step 4: Simplify right side
497,590,201.51x = 186,466,119,818,056,384 - Step 5: Solve for x
x = 186,466,119,818,056,384/497,590,201.51 - Step 6: Final answer
x = 374,738,327.35
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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.