Finding the Fourth Proportional to 2,769,214,136.80, 4,153,821,205.20 and 830,517,368.80
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Solution
The fourth proportional to 2,769,214,136.80, 4,153,821,205.20 and 830,517,368.80 is: 1,245,776,053.20
Step by Step Solution
- Step 1: Write the proportion equation
2,769,214,136.80 : 4,153,821,205.20 = 830,517,368.80 : x - Step 2: Convert to fraction form
2,769,214,136.80/4,153,821,205.20 = 830,517,368.80/x - Step 3: Cross multiply
2,769,214,136.80x = 4,153,821,205.20 × 830,517,368.80 - Step 4: Simplify right side
2,769,214,136.80x = 3,449,820,657,808,348,672 - Step 5: Solve for x
x = 3,449,820,657,808,348,672/2,769,214,136.80 - Step 6: Final answer
x = 1,245,776,053.20
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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.