Finding the Fourth Proportional to 20,776,047.84, 31,165,638.30 and 6,201,816.12
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Solution
The fourth proportional to 20,776,047.84, 31,165,638.30 and 6,201,816.12 is: 9,303,191.80
Step by Step Solution
- Step 1: Write the proportion equation
20,776,047.84 : 31,165,638.30 = 6,201,816.12 : x - Step 2: Convert to fraction form
20,776,047.84/31,165,638.30 = 6,201,816.12/x - Step 3: Cross multiply
20,776,047.84x = 31,165,638.30 × 6,201,816.12 - Step 4: Simplify right side
20,776,047.84x = 193,283,557,999,029.41 - Step 5: Solve for x
x = 193,283,557,999,029.41/20,776,047.84 - Step 6: Final answer
x = 9,303,191.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.