Finding the Fourth Proportional to 16,420,419.88, 22,660,652.75 and 9,078,727.25
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Solution
The fourth proportional to 16,420,419.88, 22,660,652.75 and 9,078,727.25 is: 12,528,905.30
Step by Step Solution
- Step 1: Write the proportion equation
16,420,419.88 : 22,660,652.75 = 9,078,727.25 : x - Step 2: Convert to fraction form
16,420,419.88/22,660,652.75 = 9,078,727.25/x - Step 3: Cross multiply
16,420,419.88x = 22,660,652.75 × 9,078,727.25 - Step 4: Simplify right side
16,420,419.88x = 205,729,885,635,470.44 - Step 5: Solve for x
x = 205,729,885,635,470.44/16,420,419.88 - Step 6: Final answer
x = 12,528,905.30
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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.