Finding the Fourth Proportional to 13,286,809.35, 18,335,796.80 and 7,175,237.31
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Solution
The fourth proportional to 13,286,809.35, 18,335,796.80 and 7,175,237.31 is: 9,901,827.43
Step by Step Solution
- Step 1: Write the proportion equation
13,286,809.35 : 18,335,796.80 = 7,175,237.31 : x - Step 2: Convert to fraction form
13,286,809.35/18,335,796.80 = 7,175,237.31/x - Step 3: Cross multiply
13,286,809.35x = 18,335,796.80 × 7,175,237.31 - Step 4: Simplify right side
13,286,809.35x = 131,563,693,272,062.42 - Step 5: Solve for x
x = 131,563,693,272,062.42/13,286,809.35 - Step 6: Final answer
x = 9,901,827.43
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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.