Finding the Fourth Proportional to 128,706,046.20, 193,059,069.30 and 92,237,383.80
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Solution
The fourth proportional to 128,706,046.20, 193,059,069.30 and 92,237,383.80 is: 138,356,075.70
Step by Step Solution
- Step 1: Write the proportion equation
128,706,046.20 : 193,059,069.30 = 92,237,383.80 : x - Step 2: Convert to fraction form
128,706,046.20/193,059,069.30 = 92,237,383.80/x - Step 3: Cross multiply
128,706,046.20x = 193,059,069.30 × 92,237,383.80 - Step 4: Simplify right side
128,706,046.20x = 17,807,263,471,094,898 - Step 5: Solve for x
x = 17,807,263,471,094,898/128,706,046.20 - Step 6: Final answer
x = 138,356,075.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.