Finding the Fourth Proportional to 405,345,796.26, 559,378,023.10 and 219,706,937.70
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Solution
The fourth proportional to 405,345,796.26, 559,378,023.10 and 219,706,937.70 is: 303,196,020.80
Step by Step Solution
- Step 1: Write the proportion equation
405,345,796.26 : 559,378,023.10 = 219,706,937.70 : x - Step 2: Convert to fraction form
405,345,796.26/559,378,023.10 = 219,706,937.70/x - Step 3: Cross multiply
405,345,796.26x = 559,378,023.10 × 219,706,937.70 - Step 4: Simplify right side
405,345,796.26x = 122,899,232,472,255,504 - Step 5: Solve for x
x = 122,899,232,472,255,504/405,345,796.26 - Step 6: Final answer
x = 303,196,020.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.