Finding the Fourth Proportional to 1,199,884,990.79, 1,798,193,301.19 and 675,504,209.99
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Solution
The fourth proportional to 1,199,884,990.79, 1,798,193,301.19 and 675,504,209.99 is: 1,012,336,311.11
Step by Step Solution
- Step 1: Write the proportion equation
1,199,884,990.79 : 1,798,193,301.19 = 675,504,209.99 : x - Step 2: Convert to fraction form
1,199,884,990.79/1,798,193,301.19 = 675,504,209.99/x - Step 3: Cross multiply
1,199,884,990.79x = 1,798,193,301.19 × 675,504,209.99 - Step 4: Simplify right side
1,199,884,990.79x = 1,214,687,145,329,661,184 - Step 5: Solve for x
x = 1,214,687,145,329,661,184/1,199,884,990.79 - Step 6: Final answer
x = 1,012,336,311.11
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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.