Finding the Fourth Proportional to 10,471,553.20, 15,707,329.80 and 7,637,201.20
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Solution
The fourth proportional to 10,471,553.20, 15,707,329.80 and 7,637,201.20 is: 11,455,801.80
Step by Step Solution
- Step 1: Write the proportion equation
10,471,553.20 : 15,707,329.80 = 7,637,201.20 : x - Step 2: Convert to fraction form
10,471,553.20/15,707,329.80 = 7,637,201.20/x - Step 3: Cross multiply
10,471,553.20x = 15,707,329.80 × 7,637,201.20 - Step 4: Simplify right side
10,471,553.20x = 119,960,037,997,355.77 - Step 5: Solve for x
x = 119,960,037,997,355.77/10,471,553.20 - Step 6: Final answer
x = 11,455,801.80
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1.5x scale
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.