Finding the Fourth Proportional to 1,068,876,939.70, 1,603,315,409.55 and 965,564,809.30
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Solution
The fourth proportional to 1,068,876,939.70, 1,603,315,409.55 and 965,564,809.30 is: 1,448,347,213.95
Step by Step Solution
- Step 1: Write the proportion equation
1,068,876,939.70 : 1,603,315,409.55 = 965,564,809.30 : x - Step 2: Convert to fraction form
1,068,876,939.70/1,603,315,409.55 = 965,564,809.30/x - Step 3: Cross multiply
1,068,876,939.70x = 1,603,315,409.55 × 965,564,809.30 - Step 4: Simplify right side
1,068,876,939.70x = 1,548,104,937,669,896,960 - Step 5: Solve for x
x = 1,548,104,937,669,896,960/1,068,876,939.70 - Step 6: Final answer
x = 1,448,347,213.95
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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.