Finding the Fourth Proportional to 143,342,416.70, 197,806,837.44 and 84,623,996.74
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Solution
The fourth proportional to 143,342,416.70, 197,806,837.44 and 84,623,996.74 is: 116,777,751.85
Step by Step Solution
- Step 1: Write the proportion equation
143,342,416.70 : 197,806,837.44 = 84,623,996.74 : x - Step 2: Convert to fraction form
143,342,416.70/197,806,837.44 = 84,623,996.74/x - Step 3: Cross multiply
143,342,416.70x = 197,806,837.44 × 84,623,996.74 - Step 4: Simplify right side
143,342,416.70x = 16,739,205,166,672,268 - Step 5: Solve for x
x = 16,739,205,166,672,268/143,342,416.70 - Step 6: Final answer
x = 116,777,751.85
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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.