Finding the Fourth Proportional to 19,442,831.06, 26,831,874.22 and 11,182,880.09
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Solution
The fourth proportional to 19,442,831.06, 26,831,874.22 and 11,182,880.09 is: 15,432,815.88
Step by Step Solution
- Step 1: Write the proportion equation
19,442,831.06 : 26,831,874.22 = 11,182,880.09 : x - Step 2: Convert to fraction form
19,442,831.06/26,831,874.22 = 11,182,880.09/x - Step 3: Cross multiply
19,442,831.06x = 26,831,874.22 × 11,182,880.09 - Step 4: Simplify right side
19,442,831.06x = 300,057,631,830,105.75 - Step 5: Solve for x
x = 300,057,631,830,105.75/19,442,831.06 - Step 6: Final answer
x = 15,432,815.88
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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.