Finding the Fourth Proportional to 15,113,324.74, 20,856,393.76 and 8,586,962.77
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Solution
The fourth proportional to 15,113,324.74, 20,856,393.76 and 8,586,962.77 is: 11,850,011.82
Step by Step Solution
- Step 1: Write the proportion equation
15,113,324.74 : 20,856,393.76 = 8,586,962.77 : x - Step 2: Convert to fraction form
15,113,324.74/20,856,393.76 = 8,586,962.77/x - Step 3: Cross multiply
15,113,324.74x = 20,856,393.76 × 8,586,962.77 - Step 4: Simplify right side
15,113,324.74x = 179,093,076,733,580.31 - Step 5: Solve for x
x = 179,093,076,733,580.31/15,113,324.74 - Step 6: Final answer
x = 11,850,011.82
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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.