Finding the Fourth Proportional to 10,368,855.20, 15,551,209.20 and 4,977,495.20
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Solution
The fourth proportional to 10,368,855.20, 15,551,209.20 and 4,977,495.20 is: 7,465,247.38
Step by Step Solution
- Step 1: Write the proportion equation
10,368,855.20 : 15,551,209.20 = 4,977,495.20 : x - Step 2: Convert to fraction form
10,368,855.20/15,551,209.20 = 4,977,495.20/x - Step 3: Cross multiply
10,368,855.20x = 15,551,209.20 × 4,977,495.20 - Step 4: Simplify right side
10,368,855.20x = 77,406,069,147,195.84 - Step 5: Solve for x
x = 77,406,069,147,195.84/10,368,855.20 - Step 6: Final answer
x = 7,465,247.38
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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.