Finding the Fourth Proportional to 146,679,280.20, 220,018,961.07 and 54,550,980.99
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Solution
The fourth proportional to 146,679,280.20, 220,018,961.07 and 54,550,980.99 is: 81,826,486.65
Step by Step Solution
- Step 1: Write the proportion equation
146,679,280.20 : 220,018,961.07 = 54,550,980.99 : x - Step 2: Convert to fraction form
146,679,280.20/220,018,961.07 = 54,550,980.99/x - Step 3: Cross multiply
146,679,280.20x = 220,018,961.07 × 54,550,980.99 - Step 4: Simplify right side
146,679,280.20x = 12,002,250,162,769,120 - Step 5: Solve for x
x = 12,002,250,162,769,120/146,679,280.20 - Step 6: Final answer
x = 81,826,486.65
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1.5x scale
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.