Finding the Fourth Proportional to 143,342,415.70, 197,806,836.06 and 84,623,995.74
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Solution
The fourth proportional to 143,342,415.70, 197,806,836.06 and 84,623,995.74 is: 116,777,750.47
Step by Step Solution
- Step 1: Write the proportion equation
143,342,415.70 : 197,806,836.06 = 84,623,995.74 : x - Step 2: Convert to fraction form
143,342,415.70/197,806,836.06 = 84,623,995.74/x - Step 3: Cross multiply
143,342,415.70x = 197,806,836.06 × 84,623,995.74 - Step 4: Simplify right side
143,342,415.70x = 16,739,204,852,084,318 - Step 5: Solve for x
x = 16,739,204,852,084,318/143,342,415.70 - Step 6: Final answer
x = 116,777,750.47
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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.