Finding the Fourth Proportional to 416,429,939.60, 574,673,371.12 and 230,802,939.44
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Solution
The fourth proportional to 416,429,939.60, 574,673,371.12 and 230,802,939.44 is: 318,508,086.62
Step by Step Solution
- Step 1: Write the proportion equation
416,429,939.60 : 574,673,371.12 = 230,802,939.44 : x - Step 2: Convert to fraction form
416,429,939.60/574,673,371.12 = 230,802,939.44/x - Step 3: Cross multiply
416,429,939.60x = 574,673,371.12 × 230,802,939.44 - Step 4: Simplify right side
416,429,939.60x = 132,636,303,272,390,000 - Step 5: Solve for x
x = 132,636,303,272,390,000/416,429,939.60 - Step 6: Final answer
x = 318,508,086.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.