Finding the Fourth Proportional to 251,336,799.05, 346,847,974.73 and 138,319,303.25
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Solution
The fourth proportional to 251,336,799.05, 346,847,974.73 and 138,319,303.25 is: 190,882,395.17
Step by Step Solution
- Step 1: Write the proportion equation
251,336,799.05 : 346,847,974.73 = 138,319,303.25 : x - Step 2: Convert to fraction form
251,336,799.05/346,847,974.73 = 138,319,303.25/x - Step 3: Cross multiply
251,336,799.05x = 346,847,974.73 × 138,319,303.25 - Step 4: Simplify right side
251,336,799.05x = 47,975,770,195,901,376 - Step 5: Solve for x
x = 47,975,770,195,901,376/251,336,799.05 - Step 6: Final answer
x = 190,882,395.17
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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.