Finding the Fourth Proportional to 780,276,058.70, 1,170,414,088.05 and 320,544,164.30
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Solution
The fourth proportional to 780,276,058.70, 1,170,414,088.05 and 320,544,164.30 is: 480,816,246.45
Step by Step Solution
- Step 1: Write the proportion equation
780,276,058.70 : 1,170,414,088.05 = 320,544,164.30 : x - Step 2: Convert to fraction form
780,276,058.70/1,170,414,088.05 = 320,544,164.30/x - Step 3: Cross multiply
780,276,058.70x = 1,170,414,088.05 × 320,544,164.30 - Step 4: Simplify right side
780,276,058.70x = 375,169,405,738,933,888 - Step 5: Solve for x
x = 375,169,405,738,933,888/780,276,058.70 - Step 6: Final answer
x = 480,816,246.45
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1.5x scale
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.