Finding the Fourth Proportional to 2,585,716,171.08, 3,879,118,980 and 838,782,503.16
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Solution
The fourth proportional to 2,585,716,171.08, 3,879,118,980 and 838,782,503.16 is: 1,258,350,457.99
Step by Step Solution
- Step 1: Write the proportion equation
2,585,716,171.08 : 3,879,118,980 = 838,782,503.16 : x - Step 2: Convert to fraction form
2,585,716,171.08/3,879,118,980 = 838,782,503.16/x - Step 3: Cross multiply
2,585,716,171.08x = 3,879,118,980 × 838,782,503.16 - Step 4: Simplify right side
2,585,716,171.08x = 3,253,737,128,099,865,600 - Step 5: Solve for x
x = 3,253,737,128,099,865,600/2,585,716,171.08 - Step 6: Final answer
x = 1,258,350,457.99
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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.