Finding the Fourth Proportional to 1,199,884,989.79, 1,798,193,299.69 and 675,504,208.99
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Solution
The fourth proportional to 1,199,884,989.79, 1,798,193,299.69 and 675,504,208.99 is: 1,012,336,309.61
Step by Step Solution
- Step 1: Write the proportion equation
1,199,884,989.79 : 1,798,193,299.69 = 675,504,208.99 : x - Step 2: Convert to fraction form
1,199,884,989.79/1,798,193,299.69 = 675,504,208.99/x - Step 3: Cross multiply
1,199,884,989.79x = 1,798,193,299.69 × 675,504,208.99 - Step 4: Simplify right side
1,199,884,989.79x = 1,214,687,142,518,211,584 - Step 5: Solve for x
x = 1,214,687,142,518,211,584/1,199,884,989.79 - Step 6: Final answer
x = 1,012,336,309.61
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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.