Finding the Fourth Proportional to 1,679,616,091.20, 2,519,424,136.80 and 1,185,137,140.80
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Solution
The fourth proportional to 1,679,616,091.20, 2,519,424,136.80 and 1,185,137,140.80 is: 1,777,705,711.20
Step by Step Solution
- Step 1: Write the proportion equation
1,679,616,091.20 : 2,519,424,136.80 = 1,185,137,140.80 : x - Step 2: Convert to fraction form
1,679,616,091.20/2,519,424,136.80 = 1,185,137,140.80/x - Step 3: Cross multiply
1,679,616,091.20x = 2,519,424,136.80 × 1,185,137,140.80 - Step 4: Simplify right side
1,679,616,091.20x = 2,985,863,117,949,660,160 - Step 5: Solve for x
x = 2,985,863,117,949,660,160/1,679,616,091.20 - Step 6: Final answer
x = 1,777,705,711.20
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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.