Finding the Fourth Proportional to 431,913,742.35, 596,452,615.52 and 408,383,357.09
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Solution
The fourth proportional to 431,913,742.35, 596,452,615.52 and 408,383,357.09 is: 563,958,257.37
Step by Step Solution
- Step 1: Write the proportion equation
431,913,742.35 : 596,452,615.52 = 408,383,357.09 : x - Step 2: Convert to fraction form
431,913,742.35/596,452,615.52 = 408,383,357.09/x - Step 3: Cross multiply
431,913,742.35x = 596,452,615.52 × 408,383,357.09 - Step 4: Simplify right side
431,913,742.35x = 243,581,321,470,083,680 - Step 5: Solve for x
x = 243,581,321,470,083,680/431,913,742.35 - Step 6: Final answer
x = 563,958,257.37
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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.