Finding the Fourth Proportional to 1,468,195,999.40, 2,202,293,999.10 and 887,720,709.80
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Solution
The fourth proportional to 1,468,195,999.40, 2,202,293,999.10 and 887,720,709.80 is: 1,331,581,064.70
Step by Step Solution
- Step 1: Write the proportion equation
1,468,195,999.40 : 2,202,293,999.10 = 887,720,709.80 : x - Step 2: Convert to fraction form
1,468,195,999.40/2,202,293,999.10 = 887,720,709.80/x - Step 3: Cross multiply
1,468,195,999.40x = 2,202,293,999.10 × 887,720,709.80 - Step 4: Simplify right side
1,468,195,999.40x = 1,955,021,992,069,332,480 - Step 5: Solve for x
x = 1,955,021,992,069,332,480/1,468,195,999.40 - Step 6: Final answer
x = 1,331,581,064.70
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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.