Finding the Third Proportional to 394,403,408 and 615,481,557
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Solution
The third proportional to 394,403,408 and 615,481,557 is: 960,482,438.34
Step by Step Solution
- Step 1: Write the proportion equation
394,403,408 : 615,481,557 = 615,481,557 : x - Step 2: Convert to fraction form
394,403,408/615,481,557 = 615,481,557/x - Step 3: Cross multiply
394,403,408x = 615,481,557 × 615,481,557 - Step 4: Simplify right side
394,403,408x = 378,817,547,007,144,256 - Step 5: Solve for x
x = 378,817,547,007,144,256/394,403,408 - Step 6: Final answer
x = 960,482,438.34
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Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.