Finding the Fourth Proportional to 62,136,808.68, 85,785,578.66 and 55,242,247.40
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Solution
The fourth proportional to 62,136,808.68, 85,785,578.66 and 55,242,247.40 is: 76,267,002.77
Step by Step Solution
- Step 1: Write the proportion equation
62,136,808.68 : 85,785,578.66 = 55,242,247.40 : x - Step 2: Convert to fraction form
62,136,808.68/85,785,578.66 = 55,242,247.40/x - Step 3: Cross multiply
62,136,808.68x = 85,785,578.66 × 55,242,247.40 - Step 4: Simplify right side
62,136,808.68x = 4,738,988,159,687,880 - Step 5: Solve for x
x = 4,738,988,159,687,880/62,136,808.68 - Step 6: Final answer
x = 76,267,002.77
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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.