Finding the Fourth Proportional to 266,688,115.20, 400,054,291.20 and 84,930,163.20
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Solution
The fourth proportional to 266,688,115.20, 400,054,291.20 and 84,930,163.20 is: 127,402,288.68
Step by Step Solution
- Step 1: Write the proportion equation
266,688,115.20 : 400,054,291.20 = 84,930,163.20 : x - Step 2: Convert to fraction form
266,688,115.20/400,054,291.20 = 84,930,163.20/x - Step 3: Cross multiply
266,688,115.20x = 400,054,291.20 × 84,930,163.20 - Step 4: Simplify right side
266,688,115.20x = 33,976,676,240,476,324 - Step 5: Solve for x
x = 33,976,676,240,476,324/266,688,115.20 - Step 6: Final answer
x = 127,402,288.68
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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.