Finding the Fourth Proportional to 146,824,147.80, 220,236,221.70 and 89,428,519.80
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Solution
The fourth proportional to 146,824,147.80, 220,236,221.70 and 89,428,519.80 is: 134,142,779.70
Step by Step Solution
- Step 1: Write the proportion equation
146,824,147.80 : 220,236,221.70 = 89,428,519.80 : x - Step 2: Convert to fraction form
146,824,147.80/220,236,221.70 = 89,428,519.80/x - Step 3: Cross multiply
146,824,147.80x = 220,236,221.70 × 89,428,519.80 - Step 4: Simplify right side
146,824,147.80x = 19,695,399,312,975,636 - Step 5: Solve for x
x = 19,695,399,312,975,636/146,824,147.80 - Step 6: Final answer
x = 134,142,779.70
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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.