Finding the Fourth Proportional to 212,960,482.29, 293,885,465.09 and 115,175,338.29
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Solution
The fourth proportional to 212,960,482.29, 293,885,465.09 and 115,175,338.29 is: 158,941,966.58
Step by Step Solution
- Step 1: Write the proportion equation
212,960,482.29 : 293,885,465.09 = 115,175,338.29 : x - Step 2: Convert to fraction form
212,960,482.29/293,885,465.09 = 115,175,338.29/x - Step 3: Cross multiply
212,960,482.29x = 293,885,465.09 × 115,175,338.29 - Step 4: Simplify right side
212,960,482.29x = 33,848,357,859,678,860 - Step 5: Solve for x
x = 33,848,357,859,678,860/212,960,482.29 - Step 6: Final answer
x = 158,941,966.58
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1.5x scale
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.