Finding the Fourth Proportional to 22,361,812.08, 30,878,659.80 and 21,213,893.04
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Solution
The fourth proportional to 22,361,812.08, 30,878,659.80 and 21,213,893.04 is: 29,293,537.75
Step by Step Solution
- Step 1: Write the proportion equation
22,361,812.08 : 30,878,659.80 = 21,213,893.04 : x - Step 2: Convert to fraction form
22,361,812.08/30,878,659.80 = 21,213,893.04/x - Step 3: Cross multiply
22,361,812.08x = 30,878,659.80 × 21,213,893.04 - Step 4: Simplify right side
22,361,812.08x = 655,056,586,215,747.75 - Step 5: Solve for x
x = 655,056,586,215,747.75/22,361,812.08 - Step 6: Final answer
x = 29,293,537.75
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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.