Finding the Fourth Proportional to 84,532,176.80, 126,798,265.20 and 30,672,490.40
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Solution
The fourth proportional to 84,532,176.80, 126,798,265.20 and 30,672,490.40 is: 46,008,735.60
Step by Step Solution
- Step 1: Write the proportion equation
84,532,176.80 : 126,798,265.20 = 30,672,490.40 : x - Step 2: Convert to fraction form
84,532,176.80/126,798,265.20 = 30,672,490.40/x - Step 3: Cross multiply
84,532,176.80x = 126,798,265.20 × 30,672,490.40 - Step 4: Simplify right side
84,532,176.80x = 3,889,218,572,083,654 - Step 5: Solve for x
x = 3,889,218,572,083,654/84,532,176.80 - Step 6: Final answer
x = 46,008,735.60
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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.