Finding the Fourth Proportional to 3,131,092,507.05, 4,700,042,050.91 and 1,267,021,422.99
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Solution
The fourth proportional to 3,131,092,507.05, 4,700,042,050.91 and 1,267,021,422.99 is: 1,901,909,302.92
Step by Step Solution
- Step 1: Write the proportion equation
3,131,092,507.05 : 4,700,042,050.91 = 1,267,021,422.99 : x - Step 2: Convert to fraction form
3,131,092,507.05/4,700,042,050.91 = 1,267,021,422.99/x - Step 3: Cross multiply
3,131,092,507.05x = 4,700,042,050.91 × 1,267,021,422.99 - Step 4: Simplify right side
3,131,092,507.05x = 5,955,053,967,450,490,880 - Step 5: Solve for x
x = 5,955,053,967,450,490,880/3,131,092,507.05 - Step 6: Final answer
x = 1,901,909,302.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.