Finding the Fourth Proportional to 854,904,394.81, 1,179,770,335.97 and 463,763,818.81
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Solution
The fourth proportional to 854,904,394.81, 1,179,770,335.97 and 463,763,818.81 is: 639,995,301.99
Step by Step Solution
- Step 1: Write the proportion equation
854,904,394.81 : 1,179,770,335.97 = 463,763,818.81 : x - Step 2: Convert to fraction form
854,904,394.81/1,179,770,335.97 = 463,763,818.81/x - Step 3: Cross multiply
854,904,394.81x = 1,179,770,335.97 × 463,763,818.81 - Step 4: Simplify right side
854,904,394.81x = 547,134,796,328,203,904 - Step 5: Solve for x
x = 547,134,796,328,203,904/854,904,394.81 - Step 6: Final answer
x = 639,995,301.99
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1.5x scale
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.