Finding the Fourth Proportional to 135,439,052.23, 186,899,636.49 and 76,702,137.67
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Solution
The fourth proportional to 135,439,052.23, 186,899,636.49 and 76,702,137.67 is: 105,845,407.31
Step by Step Solution
- Step 1: Write the proportion equation
135,439,052.23 : 186,899,636.49 = 76,702,137.67 : x - Step 2: Convert to fraction form
135,439,052.23/186,899,636.49 = 76,702,137.67/x - Step 3: Cross multiply
135,439,052.23x = 186,899,636.49 × 76,702,137.67 - Step 4: Simplify right side
135,439,052.23x = 14,335,601,648,528,936 - Step 5: Solve for x
x = 14,335,601,648,528,936/135,439,052.23 - Step 6: Final answer
x = 105,845,407.31
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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.