Finding the Fourth Proportional to 22,670,278.76, 31,285,295.56 and 12,356,979.68
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Solution
The fourth proportional to 22,670,278.76, 31,285,295.56 and 12,356,979.68 is: 17,052,801.41
Step by Step Solution
- Step 1: Write the proportion equation
22,670,278.76 : 31,285,295.56 = 12,356,979.68 : x - Step 2: Convert to fraction form
22,670,278.76/31,285,295.56 = 12,356,979.68/x - Step 3: Cross multiply
22,670,278.76x = 31,285,295.56 × 12,356,979.68 - Step 4: Simplify right side
22,670,278.76x = 386,591,761,517,714.19 - Step 5: Solve for x
x = 386,591,761,517,714.19/22,670,278.76 - Step 6: Final answer
x = 17,052,801.41
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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.