Finding the Fourth Proportional to 7,165,090.71, 9,888,240.76 and 5,395,821.48
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Solution
The fourth proportional to 7,165,090.71, 9,888,240.76 and 5,395,821.48 is: 7,446,546.60
Step by Step Solution
- Step 1: Write the proportion equation
7,165,090.71 : 9,888,240.76 = 5,395,821.48 : x - Step 2: Convert to fraction form
7,165,090.71/9,888,240.76 = 5,395,821.48/x - Step 3: Cross multiply
7,165,090.71x = 9,888,240.76 × 5,395,821.48 - Step 4: Simplify right side
7,165,090.71x = 53,355,181,892,219.53 - Step 5: Solve for x
x = 53,355,181,892,219.53/7,165,090.71 - Step 6: Final answer
x = 7,446,546.60
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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.