Finding the Fourth Proportional to 489,966,309.20, 735,092,951.58 and 144,929,124.44
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Solution
The fourth proportional to 489,966,309.20, 735,092,951.58 and 144,929,124.44 is: 217,436,129.49
Step by Step Solution
- Step 1: Write the proportion equation
489,966,309.20 : 735,092,951.58 = 144,929,124.44 : x - Step 2: Convert to fraction form
489,966,309.20/735,092,951.58 = 144,929,124.44/x - Step 3: Cross multiply
489,966,309.20x = 735,092,951.58 × 144,929,124.44 - Step 4: Simplify right side
489,966,309.20x = 106,536,377,854,504,720 - Step 5: Solve for x
x = 106,536,377,854,504,720/489,966,309.20 - Step 6: Final answer
x = 217,436,129.49
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1.5x scale
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.