Finding the Fourth Proportional to 1,679,616,233.40, 2,519,424,350.10 and 515,264,431.80
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Solution
The fourth proportional to 1,679,616,233.40, 2,519,424,350.10 and 515,264,431.80 is: 772,896,647.70
Step by Step Solution
- Step 1: Write the proportion equation
1,679,616,233.40 : 2,519,424,350.10 = 515,264,431.80 : x - Step 2: Convert to fraction form
1,679,616,233.40/2,519,424,350.10 = 515,264,431.80/x - Step 3: Cross multiply
1,679,616,233.40x = 2,519,424,350.10 × 515,264,431.80 - Step 4: Simplify right side
1,679,616,233.40x = 1,298,169,756,217,360,640 - Step 5: Solve for x
x = 1,298,169,756,217,360,640/1,679,616,233.40 - Step 6: Final answer
x = 772,896,647.70
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1.5x scale
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.