Finding the Fourth Proportional to 298,344,357.11, 411,719,478.26 and 171,205,754.13
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Solution
The fourth proportional to 298,344,357.11, 411,719,478.26 and 171,205,754.13 is: 236,266,388.43
Step by Step Solution
- Step 1: Write the proportion equation
298,344,357.11 : 411,719,478.26 = 171,205,754.13 : x - Step 2: Convert to fraction form
298,344,357.11/411,719,478.26 = 171,205,754.13/x - Step 3: Cross multiply
298,344,357.11x = 411,719,478.26 × 171,205,754.13 - Step 4: Simplify right side
298,344,357.11x = 70,488,743,764,657,408 - Step 5: Solve for x
x = 70,488,743,764,657,408/298,344,357.11 - Step 6: Final answer
x = 236,266,388.43
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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.