Finding the Fourth Proportional to 99,657,295.80, 149,485,943.70 and 39,073,021.80
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Solution
The fourth proportional to 99,657,295.80, 149,485,943.70 and 39,073,021.80 is: 58,609,532.70
Step by Step Solution
- Step 1: Write the proportion equation
99,657,295.80 : 149,485,943.70 = 39,073,021.80 : x - Step 2: Convert to fraction form
99,657,295.80/149,485,943.70 = 39,073,021.80/x - Step 3: Cross multiply
99,657,295.80x = 149,485,943.70 × 39,073,021.80 - Step 4: Simplify right side
99,657,295.80x = 5,840,867,536,983,672 - Step 5: Solve for x
x = 5,840,867,536,983,672/99,657,295.80 - Step 6: Final answer
x = 58,609,532.70
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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.