Finding the Fourth Proportional to 20,644,684.36, 30,970,749.92 and 8,507,392.08
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Solution
The fourth proportional to 20,644,684.36, 30,970,749.92 and 8,507,392.08 is: 12,762,622.47
Step by Step Solution
- Step 1: Write the proportion equation
20,644,684.36 : 30,970,749.92 = 8,507,392.08 : x - Step 2: Convert to fraction form
20,644,684.36/30,970,749.92 = 8,507,392.08/x - Step 3: Cross multiply
20,644,684.36x = 30,970,749.92 × 8,507,392.08 - Step 4: Simplify right side
20,644,684.36x = 263,480,312,581,068.66 - Step 5: Solve for x
x = 263,480,312,581,068.66/20,644,684.36 - Step 6: Final answer
x = 12,762,622.47
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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.