Finding the Fourth Proportional to 65,173,871.20, 97,823,792.40 and 39,664,703.20
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Solution
The fourth proportional to 65,173,871.20, 97,823,792.40 and 39,664,703.20 is: 59,535,387.73
Step by Step Solution
- Step 1: Write the proportion equation
65,173,871.20 : 97,823,792.40 = 39,664,703.20 : x - Step 2: Convert to fraction form
65,173,871.20/97,823,792.40 = 39,664,703.20/x - Step 3: Cross multiply
65,173,871.20x = 97,823,792.40 × 39,664,703.20 - Step 4: Simplify right side
65,173,871.20x = 3,880,151,691,444,416 - Step 5: Solve for x
x = 3,880,151,691,444,416/65,173,871.20 - Step 6: Final answer
x = 59,535,387.73
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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.