Finding the Fourth Proportional to 20,705,669.75, 31,058,238.58 and 6,878,986.26
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Solution
The fourth proportional to 20,705,669.75, 31,058,238.58 and 6,878,986.26 is: 10,318,390.99
Step by Step Solution
- Step 1: Write the proportion equation
20,705,669.75 : 31,058,238.58 = 6,878,986.26 : x - Step 2: Convert to fraction form
20,705,669.75/31,058,238.58 = 6,878,986.26/x - Step 3: Cross multiply
20,705,669.75x = 31,058,238.58 × 6,878,986.26 - Step 4: Simplify right side
20,705,669.75x = 213,649,196,317,956.03 - Step 5: Solve for x
x = 213,649,196,317,956.03/20,705,669.75 - Step 6: Final answer
x = 10,318,390.99
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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.