Finding the Fourth Proportional to 103,815,944.73, 143,217,224.28 and 74,053,171.08
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Solution
The fourth proportional to 103,815,944.73, 143,217,224.28 and 74,053,171.08 is: 102,158,581.12
Step by Step Solution
- Step 1: Write the proportion equation
103,815,944.73 : 143,217,224.28 = 74,053,171.08 : x - Step 2: Convert to fraction form
103,815,944.73/143,217,224.28 = 74,053,171.08/x - Step 3: Cross multiply
103,815,944.73x = 143,217,224.28 × 74,053,171.08 - Step 4: Simplify right side
103,815,944.73x = 10,605,689,611,209,570 - Step 5: Solve for x
x = 10,605,689,611,209,570/103,815,944.73 - Step 6: Final answer
x = 102,158,581.12
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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.