Finding the Fourth Proportional to 188,486,762,457.99, 282,728,280,499.38 and 86,354,385,716.13
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Solution
The fourth proportional to 188,486,762,457.99, 282,728,280,499.38 and 86,354,385,716.13 is: 129,530,724,962.94
Step by Step Solution
- Step 1: Write the proportion equation
188,486,762,457.99 : 282,728,280,499.38 = 86,354,385,716.13 : x - Step 2: Convert to fraction form
188,486,762,457.99/282,728,280,499.38 = 86,354,385,716.13/x - Step 3: Cross multiply
188,486,762,457.99x = 282,728,280,499.38 × 86,354,385,716.13 - Step 4: Simplify right side
188,486,762,457.99x = 24,414,826,987,101,660,119,040 - Step 5: Solve for x
x = 24,414,826,987,101,660,119,040/188,486,762,457.99 - Step 6: Final answer
x = 129,530,724,962.94
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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.