Finding the Fourth Proportional to 3,247,905,042.72, 4,481,596,995.93 and 1,891,762,135.20
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Solution
The fourth proportional to 3,247,905,042.72, 4,481,596,995.93 and 1,891,762,135.20 is: 2,610,333,550.59
Step by Step Solution
- Step 1: Write the proportion equation
3,247,905,042.72 : 4,481,596,995.93 = 1,891,762,135.20 : x - Step 2: Convert to fraction form
3,247,905,042.72/4,481,596,995.93 = 1,891,762,135.20/x - Step 3: Cross multiply
3,247,905,042.72x = 4,481,596,995.93 × 1,891,762,135.20 - Step 4: Simplify right side
3,247,905,042.72x = 8,478,115,502,126,443,520 - Step 5: Solve for x
x = 8,478,115,502,126,443,520/3,247,905,042.72 - Step 6: Final answer
x = 2,610,333,550.59
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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.