Finding the Fourth Proportional to 7,173,203.32, 9,898,872.84 and 3,909,989.80
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Solution
The fourth proportional to 7,173,203.32, 9,898,872.84 and 3,909,989.80 is: 5,395,705.39
Step by Step Solution
- Step 1: Write the proportion equation
7,173,203.32 : 9,898,872.84 = 3,909,989.80 : x - Step 2: Convert to fraction form
7,173,203.32/9,898,872.84 = 3,909,989.80/x - Step 3: Cross multiply
7,173,203.32x = 9,898,872.84 × 3,909,989.80 - Step 4: Simplify right side
7,173,203.32x = 38,704,491,835,897.03 - Step 5: Solve for x
x = 38,704,491,835,897.03/7,173,203.32 - Step 6: Final answer
x = 5,395,705.39
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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.