Finding the Fourth Proportional to 99,432,322.01, 137,220,882.20 and 55,379,340.44
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Solution
The fourth proportional to 99,432,322.01, 137,220,882.20 and 55,379,340.44 is: 76,425,872.36
Step by Step Solution
- Step 1: Write the proportion equation
99,432,322.01 : 137,220,882.20 = 55,379,340.44 : x - Step 2: Convert to fraction form
99,432,322.01/137,220,882.20 = 55,379,340.44/x - Step 3: Cross multiply
99,432,322.01x = 137,220,882.20 × 55,379,340.44 - Step 4: Simplify right side
99,432,322.01x = 7,599,201,950,590,185 - Step 5: Solve for x
x = 7,599,201,950,590,185/99,432,322.01 - Step 6: Final answer
x = 76,425,872.36
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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.