Finding the Fourth Proportional to 18,282,656.10, 27,430,982.55 and 17,995,721.70
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Solution
The fourth proportional to 18,282,656.10, 27,430,982.55 and 17,995,721.70 is: 27,000,471.11
Step by Step Solution
- Step 1: Write the proportion equation
18,282,656.10 : 27,430,982.55 = 17,995,721.70 : x - Step 2: Convert to fraction form
18,282,656.10/27,430,982.55 = 17,995,721.70/x - Step 3: Cross multiply
18,282,656.10x = 27,430,982.55 × 17,995,721.70 - Step 4: Simplify right side
18,282,656.10x = 493,640,327,927,356.31 - Step 5: Solve for x
x = 493,640,327,927,356.31/18,282,656.10 - Step 6: Final answer
x = 27,000,471.11
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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.