Finding the Fourth Proportional to 15,997,839.91, 22,076,862.12 and 8,655,511.94
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Solution
The fourth proportional to 15,997,839.91, 22,076,862.12 and 8,655,511.94 is: 11,944,521.55
Step by Step Solution
- Step 1: Write the proportion equation
15,997,839.91 : 22,076,862.12 = 8,655,511.94 : x - Step 2: Convert to fraction form
15,997,839.91/22,076,862.12 = 8,655,511.94/x - Step 3: Cross multiply
15,997,839.91x = 22,076,862.12 × 8,655,511.94 - Step 4: Simplify right side
15,997,839.91x = 191,086,543,567,009.44 - Step 5: Solve for x
x = 191,086,543,567,009.44/15,997,839.91 - Step 6: Final answer
x = 11,944,521.55
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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.