Finding the Fourth Proportional to 499,348,198.17, 749,318,202 and 278,204,637.15
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Solution
The fourth proportional to 499,348,198.17, 749,318,202 and 278,204,637.15 is: 417,471,814.78
Step by Step Solution
- Step 1: Write the proportion equation
499,348,198.17 : 749,318,202 = 278,204,637.15 : x - Step 2: Convert to fraction form
499,348,198.17/749,318,202 = 278,204,637.15/x - Step 3: Cross multiply
499,348,198.17x = 749,318,202 × 278,204,637.15 - Step 4: Simplify right side
499,348,198.17x = 208,463,798,497,300,384 - Step 5: Solve for x
x = 208,463,798,497,300,384/499,348,198.17 - Step 6: Final answer
x = 417,471,814.78
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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.