Finding the Fourth Proportional to 5,487,523,915.85, 7,572,782,992.82 and 3,108,661,849.99
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Solution
The fourth proportional to 5,487,523,915.85, 7,572,782,992.82 and 3,108,661,849.99 is: 4,289,953,346.72
Step by Step Solution
- Step 1: Write the proportion equation
5,487,523,915.85 : 7,572,782,992.82 = 3,108,661,849.99 : x - Step 2: Convert to fraction form
5,487,523,915.85/7,572,782,992.82 = 3,108,661,849.99/x - Step 3: Cross multiply
5,487,523,915.85x = 7,572,782,992.82 × 3,108,661,849.99 - Step 4: Simplify right side
5,487,523,915.85x = 23,541,221,588,026,929,152 - Step 5: Solve for x
x = 23,541,221,588,026,929,152/5,487,523,915.85 - Step 6: Final answer
x = 4,289,953,346.72
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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.