Finding the Fourth Proportional to 15,163,276.71, 20,925,013.17 and 8,287,807.98
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Solution
The fourth proportional to 15,163,276.71, 20,925,013.17 and 8,287,807.98 is: 11,437,006.29
Step by Step Solution
- Step 1: Write the proportion equation
15,163,276.71 : 20,925,013.17 = 8,287,807.98 : x - Step 2: Convert to fraction form
15,163,276.71/20,925,013.17 = 8,287,807.98/x - Step 3: Cross multiply
15,163,276.71x = 20,925,013.17 × 8,287,807.98 - Step 4: Simplify right side
15,163,276.71x = 173,422,491,131,931.12 - Step 5: Solve for x
x = 173,422,491,131,931.12/15,163,276.71 - Step 6: Final answer
x = 11,437,006.29
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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.