Finding the Fourth Proportional to 495,052,823.20, 742,579,234.80 and 381,806,615.20
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Solution
The fourth proportional to 495,052,823.20, 742,579,234.80 and 381,806,615.20 is: 572,709,922.80
Step by Step Solution
- Step 1: Write the proportion equation
495,052,823.20 : 742,579,234.80 = 381,806,615.20 : x - Step 2: Convert to fraction form
495,052,823.20/742,579,234.80 = 381,806,615.20/x - Step 3: Cross multiply
495,052,823.20x = 742,579,234.80 × 381,806,615.20 - Step 4: Simplify right side
495,052,823.20x = 283,521,664,156,794,016 - Step 5: Solve for x
x = 283,521,664,156,794,016/495,052,823.20 - Step 6: Final answer
x = 572,709,922.80
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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.