Finding the Fourth Proportional to 212,952,750.88, 293,877,651.56 and 120,132,971.68
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Solution
The fourth proportional to 212,952,750.88, 293,877,651.56 and 120,132,971.68 is: 165,785,111.70
Step by Step Solution
- Step 1: Write the proportion equation
212,952,750.88 : 293,877,651.56 = 120,132,971.68 : x - Step 2: Convert to fraction form
212,952,750.88/293,877,651.56 = 120,132,971.68/x - Step 3: Cross multiply
212,952,750.88x = 293,877,651.56 × 120,132,971.68 - Step 4: Simplify right side
212,952,750.88x = 35,304,395,592,242,392 - Step 5: Solve for x
x = 35,304,395,592,242,392/212,952,750.88 - Step 6: Final answer
x = 165,785,111.70
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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.