Finding the Fourth Proportional to 2,987,899,534.24, 4,481,067,024.42 and 888,810,378.28
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Solution
The fourth proportional to 2,987,899,534.24, 4,481,067,024.42 and 888,810,378.28 is: 1,332,982,863.52
Step by Step Solution
- Step 1: Write the proportion equation
2,987,899,534.24 : 4,481,067,024.42 = 888,810,378.28 : x - Step 2: Convert to fraction form
2,987,899,534.24/4,481,067,024.42 = 888,810,378.28/x - Step 3: Cross multiply
2,987,899,534.24x = 4,481,067,024.42 × 888,810,378.28 - Step 4: Simplify right side
2,987,899,534.24x = 3,982,818,877,072,774,144 - Step 5: Solve for x
x = 3,982,818,877,072,774,144/2,987,899,534.24 - Step 6: Final answer
x = 1,332,982,863.52
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1.5x scale
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.