Finding the Fourth Proportional to 20,803,532.80, 31,144,473.60 and 14,831,564.80
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Solution
The fourth proportional to 20,803,532.80, 31,144,473.60 and 14,831,564.80 is: 22,203,982.51
Step by Step Solution
- Step 1: Write the proportion equation
20,803,532.80 : 31,144,473.60 = 14,831,564.80 : x - Step 2: Convert to fraction form
20,803,532.80/31,144,473.60 = 14,831,564.80/x - Step 3: Cross multiply
20,803,532.80x = 31,144,473.60 × 14,831,564.80 - Step 4: Simplify right side
20,803,532.80x = 461,921,278,360,289.31 - Step 5: Solve for x
x = 461,921,278,360,289.31/20,803,532.80 - Step 6: Final answer
x = 22,203,982.51
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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.