Finding the Fourth Proportional to 12,105,963.54, 18,164,293.74 and 6,347,320.38
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Solution
The fourth proportional to 12,105,963.54, 18,164,293.74 and 6,347,320.38 is: 9,523,784.82
Step by Step Solution
- Step 1: Write the proportion equation
12,105,963.54 : 18,164,293.74 = 6,347,320.38 : x - Step 2: Convert to fraction form
12,105,963.54/18,164,293.74 = 6,347,320.38/x - Step 3: Cross multiply
12,105,963.54x = 18,164,293.74 × 6,347,320.38 - Step 4: Simplify right side
12,105,963.54x = 115,294,591,844,208.41 - Step 5: Solve for x
x = 115,294,591,844,208.41/12,105,963.54 - Step 6: Final answer
x = 9,523,784.82
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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.