Finding the Fourth Proportional to 18,354,172.80, 27,531,259.20 and 6,386,908.80
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Solution
The fourth proportional to 18,354,172.80, 27,531,259.20 and 6,386,908.80 is: 9,580,363.20
Step by Step Solution
- Step 1: Write the proportion equation
18,354,172.80 : 27,531,259.20 = 6,386,908.80 : x - Step 2: Convert to fraction form
18,354,172.80/27,531,259.20 = 6,386,908.80/x - Step 3: Cross multiply
18,354,172.80x = 27,531,259.20 × 6,386,908.80 - Step 4: Simplify right side
18,354,172.80x = 175,839,641,659,560.94 - Step 5: Solve for x
x = 175,839,641,659,560.94/18,354,172.80 - Step 6: Final answer
x = 9,580,363.20
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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.