Finding the Fourth Proportional to 854,904,327.84, 1,179,770,243.76 and 463,763,751.84
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Solution
The fourth proportional to 854,904,327.84, 1,179,770,243.76 and 463,763,751.84 is: 639,995,209.68
Step by Step Solution
- Step 1: Write the proportion equation
854,904,327.84 : 1,179,770,243.76 = 463,763,751.84 : x - Step 2: Convert to fraction form
854,904,327.84/1,179,770,243.76 = 463,763,751.84/x - Step 3: Cross multiply
854,904,327.84x = 1,179,770,243.76 × 463,763,751.84 - Step 4: Simplify right side
854,904,327.84x = 547,134,674,555,328,896 - Step 5: Solve for x
x = 547,134,674,555,328,896/854,904,327.84 - Step 6: Final answer
x = 639,995,209.68
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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.