Finding the Fourth Proportional to 638,479,799.68, 881,101,733.84 and 345,124,367.68
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Solution
The fourth proportional to 638,479,799.68, 881,101,733.84 and 345,124,367.68 is: 476,271,416.74
Step by Step Solution
- Step 1: Write the proportion equation
638,479,799.68 : 881,101,733.84 = 345,124,367.68 : x - Step 2: Convert to fraction form
638,479,799.68/881,101,733.84 = 345,124,367.68/x - Step 3: Cross multiply
638,479,799.68x = 881,101,733.84 × 345,124,367.68 - Step 4: Simplify right side
638,479,799.68x = 304,089,678,751,556,032 - Step 5: Solve for x
x = 304,089,678,751,556,032/638,479,799.68 - Step 6: Final answer
x = 476,271,416.74
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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.