Finding the Fourth Proportional to 15,962,827.25, 22,028,700.74 and 8,620,659.68
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Solution
The fourth proportional to 15,962,827.25, 22,028,700.74 and 8,620,659.68 is: 11,896,509.88
Step by Step Solution
- Step 1: Write the proportion equation
15,962,827.25 : 22,028,700.74 = 8,620,659.68 : x - Step 2: Convert to fraction form
15,962,827.25/22,028,700.74 = 8,620,659.68/x - Step 3: Cross multiply
15,962,827.25x = 22,028,700.74 × 8,620,659.68 - Step 4: Simplify right side
15,962,827.25x = 189,901,932,118,857.38 - Step 5: Solve for x
x = 189,901,932,118,857.38/15,962,827.25 - Step 6: Final answer
x = 11,896,509.88
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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.