Finding the Fourth Proportional to 448,291,236.30, 672,436,854.45 and 157,486,721.10
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Solution
The fourth proportional to 448,291,236.30, 672,436,854.45 and 157,486,721.10 is: 236,230,081.65
Step by Step Solution
- Step 1: Write the proportion equation
448,291,236.30 : 672,436,854.45 = 157,486,721.10 : x - Step 2: Convert to fraction form
448,291,236.30/672,436,854.45 = 157,486,721.10/x - Step 3: Cross multiply
448,291,236.30x = 672,436,854.45 × 157,486,721.10 - Step 4: Simplify right side
448,291,236.30x = 105,899,875,354,128,448 - Step 5: Solve for x
x = 105,899,875,354,128,448/448,291,236.30 - Step 6: Final answer
x = 236,230,081.65
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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.