Finding the Fourth Proportional to 664,272,690.40, 996,409,035.60 and 295,806,930.40
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Solution
The fourth proportional to 664,272,690.40, 996,409,035.60 and 295,806,930.40 is: 443,710,395.60
Step by Step Solution
- Step 1: Write the proportion equation
664,272,690.40 : 996,409,035.60 = 295,806,930.40 : x - Step 2: Convert to fraction form
664,272,690.40/996,409,035.60 = 295,806,930.40/x - Step 3: Cross multiply
664,272,690.40x = 996,409,035.60 × 295,806,930.40 - Step 4: Simplify right side
664,272,690.40x = 294,744,698,243,660,288 - Step 5: Solve for x
x = 294,744,698,243,660,288/664,272,690.40 - Step 6: Final answer
x = 443,710,395.60
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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.