Finding the Fourth Proportional to 489,966,430.40, 735,093,133.64 and 144,929,245.68
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Solution
The fourth proportional to 489,966,430.40, 735,093,133.64 and 144,929,245.68 is: 217,436,311.46
Step by Step Solution
- Step 1: Write the proportion equation
489,966,430.40 : 735,093,133.64 = 144,929,245.68 : x - Step 2: Convert to fraction form
489,966,430.40/735,093,133.64 = 144,929,245.68/x - Step 3: Cross multiply
489,966,430.40x = 735,093,133.64 × 144,929,245.68 - Step 4: Simplify right side
489,966,430.40x = 106,536,493,362,992,640 - Step 5: Solve for x
x = 106,536,493,362,992,640/489,966,430.40 - Step 6: Final answer
x = 217,436,311.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.