Finding the Fourth Proportional to 7,558,290,220.80, 11,337,435,331.20 and 6,915,459,187.20
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Solution
The fourth proportional to 7,558,290,220.80, 11,337,435,331.20 and 6,915,459,187.20 is: 10,373,188,780.80
Step by Step Solution
- Step 1: Write the proportion equation
7,558,290,220.80 : 11,337,435,331.20 = 6,915,459,187.20 : x - Step 2: Convert to fraction form
7,558,290,220.80/11,337,435,331.20 = 6,915,459,187.20/x - Step 3: Cross multiply
7,558,290,220.80x = 11,337,435,331.20 × 6,915,459,187.20 - Step 4: Simplify right side
7,558,290,220.80x = 78,403,571,320,432,918,528 - Step 5: Solve for x
x = 78,403,571,320,432,918,528/7,558,290,220.80 - Step 6: Final answer
x = 10,373,188,780.80
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Double scale
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Similar ratio
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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.