Finding the Fourth Proportional to 123,702,355.98, 170,712,198.34 and 67,948,944.12
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Solution
The fourth proportional to 123,702,355.98, 170,712,198.34 and 67,948,944.12 is: 93,771,161.70
Step by Step Solution
- Step 1: Write the proportion equation
123,702,355.98 : 170,712,198.34 = 67,948,944.12 : x - Step 2: Convert to fraction form
123,702,355.98/170,712,198.34 = 67,948,944.12/x - Step 3: Cross multiply
123,702,355.98x = 170,712,198.34 × 67,948,944.12 - Step 4: Simplify right side
123,702,355.98x = 11,599,713,625,437,146 - Step 5: Solve for x
x = 11,599,713,625,437,146/123,702,355.98 - Step 6: Final answer
x = 93,771,161.70
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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.