Finding the Fourth Proportional to 12,146,464.63, 16,762,118.70 and 6,639,862.45
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Solution
The fourth proportional to 12,146,464.63, 16,762,118.70 and 6,639,862.45 is: 9,163,008.82
Step by Step Solution
- Step 1: Write the proportion equation
12,146,464.63 : 16,762,118.70 = 6,639,862.45 : x - Step 2: Convert to fraction form
12,146,464.63/16,762,118.70 = 6,639,862.45/x - Step 3: Cross multiply
12,146,464.63x = 16,762,118.70 × 6,639,862.45 - Step 4: Simplify right side
12,146,464.63x = 111,298,162,538,572.81 - Step 5: Solve for x
x = 111,298,162,538,572.81/12,146,464.63 - Step 6: Final answer
x = 9,163,008.82
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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.