Finding the Fourth Proportional to 527,043,850.13, 727,320,498.74 and 292,129,803.92
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Solution
The fourth proportional to 527,043,850.13, 727,320,498.74 and 292,129,803.92 is: 403,139,121.41
Step by Step Solution
- Step 1: Write the proportion equation
527,043,850.13 : 727,320,498.74 = 292,129,803.92 : x - Step 2: Convert to fraction form
527,043,850.13/727,320,498.74 = 292,129,803.92/x - Step 3: Cross multiply
527,043,850.13x = 727,320,498.74 × 292,129,803.92 - Step 4: Simplify right side
527,043,850.13x = 212,471,994,683,912,832 - Step 5: Solve for x
x = 212,471,994,683,912,832/527,043,850.13 - Step 6: Final answer
x = 403,139,121.41
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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.