Finding the Fourth Proportional to 1,105,199,509.36, 1,525,863,635.28 and 703,539,889.12
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Solution
The fourth proportional to 1,105,199,509.36, 1,525,863,635.28 and 703,539,889.12 is: 971,323,207.88
Step by Step Solution
- Step 1: Write the proportion equation
1,105,199,509.36 : 1,525,863,635.28 = 703,539,889.12 : x - Step 2: Convert to fraction form
1,105,199,509.36/1,525,863,635.28 = 703,539,889.12/x - Step 3: Cross multiply
1,105,199,509.36x = 1,525,863,635.28 × 703,539,889.12 - Step 4: Simplify right side
1,105,199,509.36x = 1,073,505,932,777,131,264 - Step 5: Solve for x
x = 1,073,505,932,777,131,264/1,105,199,509.36 - Step 6: Final answer
x = 971,323,207.88
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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.