Finding the Fourth Proportional to 7,202,204.48, 9,938,902.38 and 3,939,009.08
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Solution
The fourth proportional to 7,202,204.48, 9,938,902.38 and 3,939,009.08 is: 5,435,756.07
Step by Step Solution
- Step 1: Write the proportion equation
7,202,204.48 : 9,938,902.38 = 3,939,009.08 : x - Step 2: Convert to fraction form
7,202,204.48/9,938,902.38 = 3,939,009.08/x - Step 3: Cross multiply
7,202,204.48x = 9,938,902.38 × 3,939,009.08 - Step 4: Simplify right side
7,202,204.48x = 39,149,426,720,053.62 - Step 5: Solve for x
x = 39,149,426,720,053.62/7,202,204.48 - Step 6: Final answer
x = 5,435,756.07
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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.