Finding the Fourth Proportional to 21,522,111.77, 29,700,268.80 and 11,732,339.99
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Solution
The fourth proportional to 21,522,111.77, 29,700,268.80 and 11,732,339.99 is: 16,190,495.39
Step by Step Solution
- Step 1: Write the proportion equation
21,522,111.77 : 29,700,268.80 = 11,732,339.99 : x - Step 2: Convert to fraction form
21,522,111.77/29,700,268.80 = 11,732,339.99/x - Step 3: Cross multiply
21,522,111.77x = 29,700,268.80 × 11,732,339.99 - Step 4: Simplify right side
21,522,111.77x = 348,453,651,355,989.31 - Step 5: Solve for x
x = 348,453,651,355,989.31/21,522,111.77 - Step 6: Final answer
x = 16,190,495.39
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1.5x scale
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.