Finding the Fourth Proportional to 22,677,278.32, 31,293,742.58 and 13,387,840.68
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Solution
The fourth proportional to 22,677,278.32, 31,293,742.58 and 13,387,840.68 is: 18,474,687.92
Step by Step Solution
- Step 1: Write the proportion equation
22,677,278.32 : 31,293,742.58 = 13,387,840.68 : x - Step 2: Convert to fraction form
22,677,278.32/31,293,742.58 = 13,387,840.68/x - Step 3: Cross multiply
22,677,278.32x = 31,293,742.58 × 13,387,840.68 - Step 4: Simplify right side
22,677,278.32x = 418,955,639,941,972.12 - Step 5: Solve for x
x = 418,955,639,941,972.12/22,677,278.32 - Step 6: Final answer
x = 18,474,687.92
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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.