Finding the Fourth Proportional to 22,609,428.44, 31,201,708.92 and 12,820,280.36
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Solution
The fourth proportional to 22,609,428.44, 31,201,708.92 and 12,820,280.36 is: 17,692,382.50
Step by Step Solution
- Step 1: Write the proportion equation
22,609,428.44 : 31,201,708.92 = 12,820,280.36 : x - Step 2: Convert to fraction form
22,609,428.44/31,201,708.92 = 12,820,280.36/x - Step 3: Cross multiply
22,609,428.44x = 31,201,708.92 × 12,820,280.36 - Step 4: Simplify right side
22,609,428.44x = 400,014,656,065,512.81 - Step 5: Solve for x
x = 400,014,656,065,512.81/22,609,428.44 - Step 6: Final answer
x = 17,692,382.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.