Finding the Fourth Proportional to 485,276,156.80, 727,914,235.20 and 157,751,036.80
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Solution
The fourth proportional to 485,276,156.80, 727,914,235.20 and 157,751,036.80 is: 236,626,555.20
Step by Step Solution
- Step 1: Write the proportion equation
485,276,156.80 : 727,914,235.20 = 157,751,036.80 : x - Step 2: Convert to fraction form
485,276,156.80/727,914,235.20 = 157,751,036.80/x - Step 3: Cross multiply
485,276,156.80x = 727,914,235.20 × 157,751,036.80 - Step 4: Simplify right side
485,276,156.80x = 114,829,225,304,279,072 - Step 5: Solve for x
x = 114,829,225,304,279,072/485,276,156.80 - Step 6: Final answer
x = 236,626,555.20
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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.