Finding the Fourth Proportional to 14,634,789.76, 20,195,994.09 and 8,019,539.53
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Solution
The fourth proportional to 14,634,789.76, 20,195,994.09 and 8,019,539.53 is: 11,066,955.90
Step by Step Solution
- Step 1: Write the proportion equation
14,634,789.76 : 20,195,994.09 = 8,019,539.53 : x - Step 2: Convert to fraction form
14,634,789.76/20,195,994.09 = 8,019,539.53/x - Step 3: Cross multiply
14,634,789.76x = 20,195,994.09 × 8,019,539.53 - Step 4: Simplify right side
14,634,789.76x = 161,962,572,851,421.41 - Step 5: Solve for x
x = 161,962,572,851,421.41/14,634,789.76 - Step 6: Final answer
x = 11,066,955.90
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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.