Finding the Fourth Proportional to 31,417,272.84, 43,356,095.58 and 17,666,116.68
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Solution
The fourth proportional to 31,417,272.84, 43,356,095.58 and 17,666,116.68 is: 24,379,386.69
Step by Step Solution
- Step 1: Write the proportion equation
31,417,272.84 : 43,356,095.58 = 17,666,116.68 : x - Step 2: Convert to fraction form
31,417,272.84/43,356,095.58 = 17,666,116.68/x - Step 3: Cross multiply
31,417,272.84x = 43,356,095.58 × 17,666,116.68 - Step 4: Simplify right side
31,417,272.84x = 765,933,843,305,512.25 - Step 5: Solve for x
x = 765,933,843,305,512.25/31,417,272.84 - Step 6: Final answer
x = 24,379,386.69
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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.