Finding the Fourth Proportional to 65,198,784.70, 97,861,162.65 and 39,689,616.70
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Solution
The fourth proportional to 65,198,784.70, 97,861,162.65 and 39,689,616.70 is: 59,572,767.40
Step by Step Solution
- Step 1: Write the proportion equation
65,198,784.70 : 97,861,162.65 = 39,689,616.70 : x - Step 2: Convert to fraction form
65,198,784.70/97,861,162.65 = 39,689,616.70/x - Step 3: Cross multiply
65,198,784.70x = 97,861,162.65 × 39,689,616.70 - Step 4: Simplify right side
65,198,784.70x = 3,884,072,035,394,857 - Step 5: Solve for x
x = 3,884,072,035,394,857/65,198,784.70 - Step 6: Final answer
x = 59,572,767.40
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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.