Finding the Fourth Proportional to 20,687,021.68, 31,009,241.10 and 9,177,909.08
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Solution
The fourth proportional to 20,687,021.68, 31,009,241.10 and 9,177,909.08 is: 13,757,417.57
Step by Step Solution
- Step 1: Write the proportion equation
20,687,021.68 : 31,009,241.10 = 9,177,909.08 : x - Step 2: Convert to fraction form
20,687,021.68/31,009,241.10 = 9,177,909.08/x - Step 3: Cross multiply
20,687,021.68x = 31,009,241.10 × 9,177,909.08 - Step 4: Simplify right side
20,687,021.68x = 284,599,995,455,599.19 - Step 5: Solve for x
x = 284,599,995,455,599.19/20,687,021.68 - Step 6: Final answer
x = 13,757,417.57
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.