Finding the Fourth Proportional to 403,877,649.36, 557,351,132.32 and 218,238,659.04
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Solution
The fourth proportional to 403,877,649.36, 557,351,132.32 and 218,238,659.04 is: 301,169,336.62
Step by Step Solution
- Step 1: Write the proportion equation
403,877,649.36 : 557,351,132.32 = 218,238,659.04 : x - Step 2: Convert to fraction form
403,877,649.36/557,351,132.32 = 218,238,659.04/x - Step 3: Cross multiply
403,877,649.36x = 557,351,132.32 × 218,238,659.04 - Step 4: Simplify right side
403,877,649.36x = 121,635,563,731,942,416 - Step 5: Solve for x
x = 121,635,563,731,942,416/403,877,649.36 - Step 6: Final answer
x = 301,169,336.62
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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.