Finding the Fourth Proportional to 14,128,431.71, 19,491,671.60 and 8,163,897.35
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Solution
The fourth proportional to 14,128,431.71, 19,491,671.60 and 8,163,897.35 is: 11,262,963.17
Step by Step Solution
- Step 1: Write the proportion equation
14,128,431.71 : 19,491,671.60 = 8,163,897.35 : x - Step 2: Convert to fraction form
14,128,431.71/19,491,671.60 = 8,163,897.35/x - Step 3: Cross multiply
14,128,431.71x = 19,491,671.60 × 8,163,897.35 - Step 4: Simplify right side
14,128,431.71x = 159,128,005,984,032.41 - Step 5: Solve for x
x = 159,128,005,984,032.41/14,128,431.71 - Step 6: Final answer
x = 11,262,963.17
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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.