Finding the Fourth Proportional to 10,368,390.70, 15,550,512.45 and 4,977,030.70
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Solution
The fourth proportional to 10,368,390.70, 15,550,512.45 and 4,977,030.70 is: 7,464,550.68
Step by Step Solution
- Step 1: Write the proportion equation
10,368,390.70 : 15,550,512.45 = 4,977,030.70 : x - Step 2: Convert to fraction form
10,368,390.70/15,550,512.45 = 4,977,030.70/x - Step 3: Cross multiply
10,368,390.70x = 15,550,512.45 × 4,977,030.70 - Step 4: Simplify right side
10,368,390.70x = 77,395,377,864,382.22 - Step 5: Solve for x
x = 77,395,377,864,382.22/10,368,390.70 - Step 6: Final answer
x = 7,464,550.68
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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.