Finding the Fourth Proportional to 1,207,193,922.36, 1,808,942,679 and 812,257,918.02
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Solution
The fourth proportional to 1,207,193,922.36, 1,808,942,679 and 812,257,918.02 is: 1,217,143,316.45
Step by Step Solution
- Step 1: Write the proportion equation
1,207,193,922.36 : 1,808,942,679 = 812,257,918.02 : x - Step 2: Convert to fraction form
1,207,193,922.36/1,808,942,679 = 812,257,918.02/x - Step 3: Cross multiply
1,207,193,922.36x = 1,808,942,679 × 812,257,918.02 - Step 4: Simplify right side
1,207,193,922.36x = 1,469,328,014,262,061,056 - Step 5: Solve for x
x = 1,469,328,014,262,061,056/1,207,193,922.36 - Step 6: Final answer
x = 1,217,143,316.45
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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.