Finding the Fourth Proportional to 80,702,998.30, 121,054,497.45 and 74,467,423.90
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Solution
The fourth proportional to 80,702,998.30, 121,054,497.45 and 74,467,423.90 is: 111,701,135.85
Step by Step Solution
- Step 1: Write the proportion equation
80,702,998.30 : 121,054,497.45 = 74,467,423.90 : x - Step 2: Convert to fraction form
80,702,998.30/121,054,497.45 = 74,467,423.90/x - Step 3: Cross multiply
80,702,998.30x = 121,054,497.45 × 74,467,423.90 - Step 4: Simplify right side
80,702,998.30x = 9,014,616,576,610,620 - Step 5: Solve for x
x = 9,014,616,576,610,620/80,702,998.30 - Step 6: Final answer
x = 111,701,135.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.