Finding the Fourth Proportional to 19,937,458.43, 27,518,811.44 and 12,985,459.28
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Solution
The fourth proportional to 19,937,458.43, 27,518,811.44 and 12,985,459.28 is: 17,923,267.73
Step by Step Solution
- Step 1: Write the proportion equation
19,937,458.43 : 27,518,811.44 = 12,985,459.28 : x - Step 2: Convert to fraction form
19,937,458.43/27,518,811.44 = 12,985,459.28/x - Step 3: Cross multiply
19,937,458.43x = 27,518,811.44 × 12,985,459.28 - Step 4: Simplify right side
19,937,458.43x = 357,344,405,185,596.81 - Step 5: Solve for x
x = 357,344,405,185,596.81/19,937,458.43 - Step 6: Final answer
x = 17,923,267.73
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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.