Finding the Fourth Proportional to 99,644,543.80, 149,494,809.30 and 48,528,230.20
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Solution
The fourth proportional to 99,644,543.80, 149,494,809.30 and 48,528,230.20 is: 72,805,978.56
Step by Step Solution
- Step 1: Write the proportion equation
99,644,543.80 : 149,494,809.30 = 48,528,230.20 : x - Step 2: Convert to fraction form
99,644,543.80/149,494,809.30 = 48,528,230.20/x - Step 3: Cross multiply
99,644,543.80x = 149,494,809.30 × 48,528,230.20 - Step 4: Simplify right side
99,644,543.80x = 7,254,718,519,415,502 - Step 5: Solve for x
x = 7,254,718,519,415,502/99,644,543.80 - Step 6: Final answer
x = 72,805,978.56
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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.