Finding the Fourth Proportional to 14,374,871.13, 19,839,061.71 and 8,181,423.75
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Solution
The fourth proportional to 14,374,871.13, 19,839,061.71 and 8,181,423.75 is: 11,291,354.84
Step by Step Solution
- Step 1: Write the proportion equation
14,374,871.13 : 19,839,061.71 = 8,181,423.75 : x - Step 2: Convert to fraction form
14,374,871.13/19,839,061.71 = 8,181,423.75/x - Step 3: Cross multiply
14,374,871.13x = 19,839,061.71 × 8,181,423.75 - Step 4: Simplify right side
14,374,871.13x = 162,311,770,651,909.62 - Step 5: Solve for x
x = 162,311,770,651,909.62/14,374,871.13 - Step 6: Final answer
x = 11,291,354.84
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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.