Finding the Fourth Proportional to 1,117,253,713.08, 1,541,857,954.86 and 622,216,420.92
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Solution
The fourth proportional to 1,117,253,713.08, 1,541,857,954.86 and 622,216,420.92 is: 858,685,298.61
Step by Step Solution
- Step 1: Write the proportion equation
1,117,253,713.08 : 1,541,857,954.86 = 622,216,420.92 : x - Step 2: Convert to fraction form
1,117,253,713.08/1,541,857,954.86 = 622,216,420.92/x - Step 3: Cross multiply
1,117,253,713.08x = 1,541,857,954.86 × 622,216,420.92 - Step 4: Simplify right side
1,117,253,713.08x = 959,369,338,240,019,968 - Step 5: Solve for x
x = 959,369,338,240,019,968/1,117,253,713.08 - Step 6: Final answer
x = 858,685,298.61
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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.