Finding the Fourth Proportional to 31,776,160.21, 43,849,809.75 and 18,024,829.09
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Solution
The fourth proportional to 31,776,160.21, 43,849,809.75 and 18,024,829.09 is: 24,873,531.64
Step by Step Solution
- Step 1: Write the proportion equation
31,776,160.21 : 43,849,809.75 = 18,024,829.09 : x - Step 2: Convert to fraction form
31,776,160.21/43,849,809.75 = 18,024,829.09/x - Step 3: Cross multiply
31,776,160.21x = 43,849,809.75 × 18,024,829.09 - Step 4: Simplify right side
31,776,160.21x = 790,385,326,372,765.62 - Step 5: Solve for x
x = 790,385,326,372,765.62/31,776,160.21 - Step 6: Final answer
x = 24,873,531.64
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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.