Finding the Fourth Proportional to 163,128,131.26, 225,121,692.98 and 100,440,393.98
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Solution
The fourth proportional to 163,128,131.26, 225,121,692.98 and 100,440,393.98 is: 138,610,743.35
Step by Step Solution
- Step 1: Write the proportion equation
163,128,131.26 : 225,121,692.98 = 100,440,393.98 : x - Step 2: Convert to fraction form
163,128,131.26/225,121,692.98 = 100,440,393.98/x - Step 3: Cross multiply
163,128,131.26x = 225,121,692.98 × 100,440,393.98 - Step 4: Simplify right side
163,128,131.26x = 22,611,311,535,481,292 - Step 5: Solve for x
x = 22,611,311,535,481,292/163,128,131.26 - Step 6: Final answer
x = 138,610,743.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.