Finding the Fourth Proportional to 414,079,511.20, 621,119,266.80 and 318,528,023.20
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Solution
The fourth proportional to 414,079,511.20, 621,119,266.80 and 318,528,023.20 is: 477,792,034.80
Step by Step Solution
- Step 1: Write the proportion equation
414,079,511.20 : 621,119,266.80 = 318,528,023.20 : x - Step 2: Convert to fraction form
414,079,511.20/621,119,266.80 = 318,528,023.20/x - Step 3: Cross multiply
414,079,511.20x = 621,119,266.80 × 318,528,023.20 - Step 4: Simplify right side
414,079,511.20x = 197,843,892,225,237,376 - Step 5: Solve for x
x = 197,843,892,225,237,376/414,079,511.20 - Step 6: Final answer
x = 477,792,034.80
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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.