Finding the Fourth Proportional to 142,858,177.76, 197,186,241.36 and 93,306,126.68
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Solution
The fourth proportional to 142,858,177.76, 197,186,241.36 and 93,306,126.68 is: 128,789,857.92
Step by Step Solution
- Step 1: Write the proportion equation
142,858,177.76 : 197,186,241.36 = 93,306,126.68 : x - Step 2: Convert to fraction form
142,858,177.76/197,186,241.36 = 93,306,126.68/x - Step 3: Cross multiply
142,858,177.76x = 197,186,241.36 × 93,306,126.68 - Step 4: Simplify right side
142,858,177.76x = 18,398,684,415,889,220 - Step 5: Solve for x
x = 18,398,684,415,889,220/142,858,177.76 - Step 6: Final answer
x = 128,789,857.92
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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.