Finding the Fourth Proportional to 1,490,576,399.84, 2,057,076,324.68 and 855,491,814.21
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Solution
The fourth proportional to 1,490,576,399.84, 2,057,076,324.68 and 855,491,814.21 is: 1,180,625,130.76
Step by Step Solution
- Step 1: Write the proportion equation
1,490,576,399.84 : 2,057,076,324.68 = 855,491,814.21 : x - Step 2: Convert to fraction form
1,490,576,399.84/2,057,076,324.68 = 855,491,814.21/x - Step 3: Cross multiply
1,490,576,399.84x = 2,057,076,324.68 × 855,491,814.21 - Step 4: Simplify right side
1,490,576,399.84x = 1,759,811,956,964,654,848 - Step 5: Solve for x
x = 1,759,811,956,964,654,848/1,490,576,399.84 - Step 6: Final answer
x = 1,180,625,130.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.