Finding the Fourth Proportional to 7,212,878.49, 10,809,897.23 and 5,500,752.74
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Solution
The fourth proportional to 7,212,878.49, 10,809,897.23 and 5,500,752.74 is: 8,243,944.75
Step by Step Solution
- Step 1: Write the proportion equation
7,212,878.49 : 10,809,897.23 = 5,500,752.74 : x - Step 2: Convert to fraction form
7,212,878.49/10,809,897.23 = 5,500,752.74/x - Step 3: Cross multiply
7,212,878.49x = 10,809,897.23 × 5,500,752.74 - Step 4: Simplify right side
7,212,878.49x = 59,462,571,766,743.31 - Step 5: Solve for x
x = 59,462,571,766,743.31/7,212,878.49 - Step 6: Final answer
x = 8,243,944.75
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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.