Finding the Fourth Proportional to 266,451,721.09, 399,768,320.57 and 143,641,906.13
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Solution
The fourth proportional to 266,451,721.09, 399,768,320.57 and 143,641,906.13 is: 215,511,775.80
Step by Step Solution
- Step 1: Write the proportion equation
266,451,721.09 : 399,768,320.57 = 143,641,906.13 : x - Step 2: Convert to fraction form
266,451,721.09/399,768,320.57 = 143,641,906.13/x - Step 3: Cross multiply
266,451,721.09x = 399,768,320.57 × 143,641,906.13 - Step 4: Simplify right side
266,451,721.09x = 57,423,483,577,344,896 - Step 5: Solve for x
x = 57,423,483,577,344,896/266,451,721.09 - Step 6: Final answer
x = 215,511,775.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.