Finding the Fourth Proportional to 145,699,112.58, 201,076,236.99 and 82,977,862.56
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Solution
The fourth proportional to 145,699,112.58, 201,076,236.99 and 82,977,862.56 is: 114,515,977.91
Step by Step Solution
- Step 1: Write the proportion equation
145,699,112.58 : 201,076,236.99 = 82,977,862.56 : x - Step 2: Convert to fraction form
145,699,112.58/201,076,236.99 = 82,977,862.56/x - Step 3: Cross multiply
145,699,112.58x = 201,076,236.99 × 82,977,862.56 - Step 4: Simplify right side
145,699,112.58x = 16,684,876,357,038,210 - Step 5: Solve for x
x = 16,684,876,357,038,210/145,699,112.58 - Step 6: Final answer
x = 114,515,977.91
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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.