Finding the Fourth Proportional to 84,248,614.80, 126,372,922.20 and 73,834,995.60
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Solution
The fourth proportional to 84,248,614.80, 126,372,922.20 and 73,834,995.60 is: 110,752,493.40
Step by Step Solution
- Step 1: Write the proportion equation
84,248,614.80 : 126,372,922.20 = 73,834,995.60 : x - Step 2: Convert to fraction form
84,248,614.80/126,372,922.20 = 73,834,995.60/x - Step 3: Cross multiply
84,248,614.80x = 126,372,922.20 × 73,834,995.60 - Step 4: Simplify right side
84,248,614.80x = 9,330,744,154,596,142 - Step 5: Solve for x
x = 9,330,744,154,596,142/84,248,614.80 - Step 6: Final answer
x = 110,752,493.40
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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.