Finding the Fourth Proportional to 2,585,716,173.60, 3,879,118,983.76 and 838,782,505.68
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Solution
The fourth proportional to 2,585,716,173.60, 3,879,118,983.76 and 838,782,505.68 is: 1,258,350,461.76
Step by Step Solution
- Step 1: Write the proportion equation
2,585,716,173.60 : 3,879,118,983.76 = 838,782,505.68 : x - Step 2: Convert to fraction form
2,585,716,173.60/3,879,118,983.76 = 838,782,505.68/x - Step 3: Cross multiply
2,585,716,173.60x = 3,879,118,983.76 × 838,782,505.68 - Step 4: Simplify right side
2,585,716,173.60x = 3,253,737,141,029,067,776 - Step 5: Solve for x
x = 3,253,737,141,029,067,776/2,585,716,173.60 - Step 6: Final answer
x = 1,258,350,461.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.