Finding the Fourth Proportional to 789,207,316.80, 1,106,704,228.80 and 789,207,316.80
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Solution
The fourth proportional to 789,207,316.80, 1,106,704,228.80 and 789,207,316.80 is: 1,106,704,228.80
Step by Step Solution
- Step 1: Write the proportion equation
789,207,316.80 : 1,106,704,228.80 = 789,207,316.80 : x - Step 2: Convert to fraction form
789,207,316.80/1,106,704,228.80 = 789,207,316.80/x - Step 3: Cross multiply
789,207,316.80x = 1,106,704,228.80 × 789,207,316.80 - Step 4: Simplify right side
789,207,316.80x = 873,419,074,902,461,184 - Step 5: Solve for x
x = 873,419,074,902,461,184/789,207,316.80 - Step 6: Final answer
x = 1,106,704,228.80
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.