Finding the Fourth Proportional to 2,131,420,201.92, 2,941,210,560.20 and 1,239,283,635.44
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Solution
The fourth proportional to 2,131,420,201.92, 2,941,210,560.20 and 1,239,283,635.44 is: 1,710,124,597.84
Step by Step Solution
- Step 1: Write the proportion equation
2,131,420,201.92 : 2,941,210,560.20 = 1,239,283,635.44 : x - Step 2: Convert to fraction form
2,131,420,201.92/2,941,210,560.20 = 1,239,283,635.44/x - Step 3: Cross multiply
2,131,420,201.92x = 2,941,210,560.20 × 1,239,283,635.44 - Step 4: Simplify right side
2,131,420,201.92x = 3,644,994,115,639,174,656 - Step 5: Solve for x
x = 3,644,994,115,639,174,656/2,131,420,201.92 - Step 6: Final answer
x = 1,710,124,597.84
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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.