Finding the Fourth Proportional to 478,526,699.36, 717,795,745.08 and 133,459,331.60
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Solution
The fourth proportional to 478,526,699.36, 717,795,745.08 and 133,459,331.60 is: 200,190,586.00
Step by Step Solution
- Step 1: Write the proportion equation
478,526,699.36 : 717,795,745.08 = 133,459,331.60 : x - Step 2: Convert to fraction form
478,526,699.36/717,795,745.08 = 133,459,331.60/x - Step 3: Cross multiply
478,526,699.36x = 717,795,745.08 × 133,459,331.60 - Step 4: Simplify right side
478,526,699.36x = 95,796,540,363,700,784 - Step 5: Solve for x
x = 95,796,540,363,700,784/478,526,699.36 - Step 6: Final answer
x = 200,190,586.00
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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.