Finding the Fourth Proportional to 7,278,703.20, 10,896,489.36 and 5,393,904.48
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Solution
The fourth proportional to 7,278,703.20, 10,896,489.36 and 5,393,904.48 is: 8,074,875.59
Step by Step Solution
- Step 1: Write the proportion equation
7,278,703.20 : 10,896,489.36 = 5,393,904.48 : x - Step 2: Convert to fraction form
7,278,703.20/10,896,489.36 = 5,393,904.48/x - Step 3: Cross multiply
7,278,703.20x = 10,896,489.36 × 5,393,904.48 - Step 4: Simplify right side
7,278,703.20x = 58,774,622,775,176.34 - Step 5: Solve for x
x = 58,774,622,775,176.34/7,278,703.20 - Step 6: Final answer
x = 8,074,875.59
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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.