Finding the Fourth Proportional to 22,878,684.74, 31,582,247.08 and 15,446,415.32
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Solution
The fourth proportional to 22,878,684.74, 31,582,247.08 and 15,446,415.32 is: 21,322,576.48
Step by Step Solution
- Step 1: Write the proportion equation
22,878,684.74 : 31,582,247.08 = 15,446,415.32 : x - Step 2: Convert to fraction form
22,878,684.74/31,582,247.08 = 15,446,415.32/x - Step 3: Cross multiply
22,878,684.74x = 31,582,247.08 × 15,446,415.32 - Step 4: Simplify right side
22,878,684.74x = 487,832,505,136,537.25 - Step 5: Solve for x
x = 487,832,505,136,537.25/22,878,684.74 - Step 6: Final answer
x = 21,322,576.48
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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.