Finding the Fourth Proportional to 1,186,284,811.20, 1,779,427,216.80 and 984,730,891.20
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Solution
The fourth proportional to 1,186,284,811.20, 1,779,427,216.80 and 984,730,891.20 is: 1,477,096,336.80
Step by Step Solution
- Step 1: Write the proportion equation
1,186,284,811.20 : 1,779,427,216.80 = 984,730,891.20 : x - Step 2: Convert to fraction form
1,186,284,811.20/1,779,427,216.80 = 984,730,891.20/x - Step 3: Cross multiply
1,186,284,811.20x = 1,779,427,216.80 × 984,730,891.20 - Step 4: Simplify right side
1,186,284,811.20x = 1,752,256,949,024,999,680 - Step 5: Solve for x
x = 1,752,256,949,024,999,680/1,186,284,811.20 - Step 6: Final answer
x = 1,477,096,336.80
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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.