Finding the Fourth Proportional to 99,657,187.80, 149,485,781.70 and 39,072,913.80
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Solution
The fourth proportional to 99,657,187.80, 149,485,781.70 and 39,072,913.80 is: 58,609,370.70
Step by Step Solution
- Step 1: Write the proportion equation
99,657,187.80 : 149,485,781.70 = 39,072,913.80 : x - Step 2: Convert to fraction form
99,657,187.80/149,485,781.70 = 39,072,913.80/x - Step 3: Cross multiply
99,657,187.80x = 149,485,781.70 × 39,072,913.80 - Step 4: Simplify right side
99,657,187.80x = 5,840,845,062,689,717 - Step 5: Solve for x
x = 5,840,845,062,689,717/99,657,187.80 - Step 6: Final answer
x = 58,609,370.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.