Finding the Fourth Proportional to 314,928,262.80, 472,392,394.20 and 84,889,105.20
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Solution
The fourth proportional to 314,928,262.80, 472,392,394.20 and 84,889,105.20 is: 127,333,657.80
Step by Step Solution
- Step 1: Write the proportion equation
314,928,262.80 : 472,392,394.20 = 84,889,105.20 : x - Step 2: Convert to fraction form
314,928,262.80/472,392,394.20 = 84,889,105.20/x - Step 3: Cross multiply
314,928,262.80x = 472,392,394.20 × 84,889,105.20 - Step 4: Simplify right side
314,928,262.80x = 40,100,967,646,923,672 - Step 5: Solve for x
x = 40,100,967,646,923,672/314,928,262.80 - Step 6: Final answer
x = 127,333,657.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.