Finding the Fourth Proportional to 212,952,746.25, 293,877,645.18 and 120,132,967.05
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Solution
The fourth proportional to 212,952,746.25, 293,877,645.18 and 120,132,967.05 is: 165,785,105.32
Step by Step Solution
- Step 1: Write the proportion equation
212,952,746.25 : 293,877,645.18 = 120,132,967.05 : x - Step 2: Convert to fraction form
212,952,746.25/293,877,645.18 = 120,132,967.05/x - Step 3: Cross multiply
212,952,746.25x = 293,877,645.18 × 120,132,967.05 - Step 4: Simplify right side
212,952,746.25x = 35,304,393,465,140,532 - Step 5: Solve for x
x = 35,304,393,465,140,532/212,952,746.25 - Step 6: Final answer
x = 165,785,105.32
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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.