Finding the Fourth Proportional to 1,038,318,651.36, 1,432,879,808.76 and 568,419,972.30
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Solution
The fourth proportional to 1,038,318,651.36, 1,432,879,808.76 and 568,419,972.30 is: 784,419,600.03
Step by Step Solution
- Step 1: Write the proportion equation
1,038,318,651.36 : 1,432,879,808.76 = 568,419,972.30 : x - Step 2: Convert to fraction form
1,038,318,651.36/1,432,879,808.76 = 568,419,972.30/x - Step 3: Cross multiply
1,038,318,651.36x = 1,432,879,808.76 × 568,419,972.30 - Step 4: Simplify right side
1,038,318,651.36x = 814,477,501,204,588,416 - Step 5: Solve for x
x = 814,477,501,204,588,416/1,038,318,651.36 - Step 6: Final answer
x = 784,419,600.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.