Finding the Fourth Proportional to 73,780,480.80, 110,670,721.20 and 65,490,001.20
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Solution
The fourth proportional to 73,780,480.80, 110,670,721.20 and 65,490,001.20 is: 98,235,001.80
Step by Step Solution
- Step 1: Write the proportion equation
73,780,480.80 : 110,670,721.20 = 65,490,001.20 : x - Step 2: Convert to fraction form
73,780,480.80/110,670,721.20 = 65,490,001.20/x - Step 3: Cross multiply
73,780,480.80x = 110,670,721.20 × 65,490,001.20 - Step 4: Simplify right side
73,780,480.80x = 7,247,825,664,192,866 - Step 5: Solve for x
x = 7,247,825,664,192,866/73,780,480.80 - Step 6: Final answer
x = 98,235,001.80
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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.