Finding the Fourth Proportional to 62,136,807.68, 85,785,577.28 and 55,242,246.40
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Solution
The fourth proportional to 62,136,807.68, 85,785,577.28 and 55,242,246.40 is: 76,267,001.39
Step by Step Solution
- Step 1: Write the proportion equation
62,136,807.68 : 85,785,577.28 = 55,242,246.40 : x - Step 2: Convert to fraction form
62,136,807.68/85,785,577.28 = 55,242,246.40/x - Step 3: Cross multiply
62,136,807.68x = 85,785,577.28 × 55,242,246.40 - Step 4: Simplify right side
62,136,807.68x = 4,738,987,997,668,002 - Step 5: Solve for x
x = 4,738,987,997,668,002/62,136,807.68 - Step 6: Final answer
x = 76,267,001.39
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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.