Finding the Fourth Proportional to 489,742,885.92, 675,814,177.76 and 269,726,311.92
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Solution
The fourth proportional to 489,742,885.92, 675,814,177.76 and 269,726,311.92 is: 372,205,234.52
Step by Step Solution
- Step 1: Write the proportion equation
489,742,885.92 : 675,814,177.76 = 269,726,311.92 : x - Step 2: Convert to fraction form
489,742,885.92/675,814,177.76 = 269,726,311.92/x - Step 3: Cross multiply
489,742,885.92x = 675,814,177.76 × 269,726,311.92 - Step 4: Simplify right side
489,742,885.92x = 182,284,865,710,452,096 - Step 5: Solve for x
x = 182,284,865,710,452,096/489,742,885.92 - Step 6: Final answer
x = 372,205,234.52
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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.