Finding the Fourth Proportional to 3,360,247,878.80, 5,038,860,163.80 and 1,289,281,350.80
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Solution
The fourth proportional to 3,360,247,878.80, 5,038,860,163.80 and 1,289,281,350.80 is: 1,933,342,024.99
Step by Step Solution
- Step 1: Write the proportion equation
3,360,247,878.80 : 5,038,860,163.80 = 1,289,281,350.80 : x - Step 2: Convert to fraction form
3,360,247,878.80/5,038,860,163.80 = 1,289,281,350.80/x - Step 3: Cross multiply
3,360,247,878.80x = 5,038,860,163.80 × 1,289,281,350.80 - Step 4: Simplify right side
3,360,247,878.80x = 6,496,508,438,476,372,992 - Step 5: Solve for x
x = 6,496,508,438,476,372,992/3,360,247,878.80 - Step 6: Final answer
x = 1,933,342,024.99
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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.