Finding the Fourth Proportional to 18,201,325,649.99, 27,301,988,475 and 5,115,122,465.99
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Solution
The fourth proportional to 18,201,325,649.99, 27,301,988,475 and 5,115,122,465.99 is: 7,672,683,698.99
Step by Step Solution
- Step 1: Write the proportion equation
18,201,325,649.99 : 27,301,988,475 = 5,115,122,465.99 : x - Step 2: Convert to fraction form
18,201,325,649.99/27,301,988,475 = 5,115,122,465.99/x - Step 3: Cross multiply
18,201,325,649.99x = 27,301,988,475 × 5,115,122,465.99 - Step 4: Simplify right side
18,201,325,649.99x = 139,653,014,614,672,556,032 - Step 5: Solve for x
x = 139,653,014,614,672,556,032/18,201,325,649.99 - Step 6: Final answer
x = 7,672,683,698.99
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1.5x scale
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.