Finding the Fourth Proportional to 7,278,840.96, 10,041,552.48 and 4,221,283.20
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Solution
The fourth proportional to 7,278,840.96, 10,041,552.48 and 4,221,283.20 is: 5,823,487.15
Step by Step Solution
- Step 1: Write the proportion equation
7,278,840.96 : 10,041,552.48 = 4,221,283.20 : x - Step 2: Convert to fraction form
7,278,840.96/10,041,552.48 = 4,221,283.20/x - Step 3: Cross multiply
7,278,840.96x = 10,041,552.48 × 4,221,283.20 - Step 4: Simplify right side
7,278,840.96x = 42,388,236,785,742.34 - Step 5: Solve for x
x = 42,388,236,785,742.34/7,278,840.96 - Step 6: Final answer
x = 5,823,487.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.