Finding the Fourth Proportional to 16,415,425.90, 22,652,892.61 and 8,972,753.91
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Solution
The fourth proportional to 16,415,425.90, 22,652,892.61 and 8,972,753.91 is: 12,382,184.41
Step by Step Solution
- Step 1: Write the proportion equation
16,415,425.90 : 22,652,892.61 = 8,972,753.91 : x - Step 2: Convert to fraction form
16,415,425.90/22,652,892.61 = 8,972,753.91/x - Step 3: Cross multiply
16,415,425.90x = 22,652,892.61 × 8,972,753.91 - Step 4: Simplify right side
16,415,425.90x = 203,258,830,739,187.59 - Step 5: Solve for x
x = 203,258,830,739,187.59/16,415,425.90 - Step 6: Final answer
x = 12,382,184.41
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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.