Finding the Fourth Proportional to 760,752,136.80, 1,141,128,205.20 and 709,355,887.20
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Solution
The fourth proportional to 760,752,136.80, 1,141,128,205.20 and 709,355,887.20 is: 1,064,033,830.80
Step by Step Solution
- Step 1: Write the proportion equation
760,752,136.80 : 1,141,128,205.20 = 709,355,887.20 : x - Step 2: Convert to fraction form
760,752,136.80/1,141,128,205.20 = 709,355,887.20/x - Step 3: Cross multiply
760,752,136.80x = 1,141,128,205.20 × 709,355,887.20 - Step 4: Simplify right side
760,752,136.80x = 809,466,010,408,589,696 - Step 5: Solve for x
x = 809,466,010,408,589,696/760,752,136.80 - Step 6: Final answer
x = 1,064,033,830.80
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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.