Finding the Fourth Proportional to 5,389,920,136.80, 8,084,880,205.20 and 1,709,713,519.20
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Solution
The fourth proportional to 5,389,920,136.80, 8,084,880,205.20 and 1,709,713,519.20 is: 2,564,570,278.80
Step by Step Solution
- Step 1: Write the proportion equation
5,389,920,136.80 : 8,084,880,205.20 = 1,709,713,519.20 : x - Step 2: Convert to fraction form
5,389,920,136.80/8,084,880,205.20 = 1,709,713,519.20/x - Step 3: Cross multiply
5,389,920,136.80x = 8,084,880,205.20 × 1,709,713,519.20 - Step 4: Simplify right side
5,389,920,136.80x = 13,822,828,987,942,909,952 - Step 5: Solve for x
x = 13,822,828,987,942,909,952/5,389,920,136.80 - Step 6: Final answer
x = 2,564,570,278.80
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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.