Finding the Fourth Proportional to 80,562,686.18, 120,844,876.74 and 64,490,805.92
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Solution
The fourth proportional to 80,562,686.18, 120,844,876.74 and 64,490,805.92 is: 96,736,887.28
Step by Step Solution
- Step 1: Write the proportion equation
80,562,686.18 : 120,844,876.74 = 64,490,805.92 : x - Step 2: Convert to fraction form
80,562,686.18/120,844,876.74 = 64,490,805.92/x - Step 3: Cross multiply
80,562,686.18x = 120,844,876.74 × 64,490,805.92 - Step 4: Simplify right side
80,562,686.18x = 7,793,383,492,265,662 - Step 5: Solve for x
x = 7,793,383,492,265,662/80,562,686.18 - Step 6: Final answer
x = 96,736,887.28
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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.