Finding the Fourth Proportional to 15,363,500.49, 21,201,379.87 and 8,394,028.06
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Solution
The fourth proportional to 15,363,500.49, 21,201,379.87 and 8,394,028.06 is: 11,583,621.69
Step by Step Solution
- Step 1: Write the proportion equation
15,363,500.49 : 21,201,379.87 = 8,394,028.06 : x - Step 2: Convert to fraction form
15,363,500.49/21,201,379.87 = 8,394,028.06/x - Step 3: Cross multiply
15,363,500.49x = 21,201,379.87 × 8,394,028.06 - Step 4: Simplify right side
15,363,500.49x = 177,964,977,465,510.62 - Step 5: Solve for x
x = 177,964,977,465,510.62/15,363,500.49 - Step 6: Final answer
x = 11,583,621.69
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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.