Finding the Fourth Proportional to 3,360,247,847.80, 5,038,860,117.30 and 1,289,281,319.80
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Solution
The fourth proportional to 3,360,247,847.80, 5,038,860,117.30 and 1,289,281,319.80 is: 1,933,341,978.50
Step by Step Solution
- Step 1: Write the proportion equation
3,360,247,847.80 : 5,038,860,117.30 = 1,289,281,319.80 : x - Step 2: Convert to fraction form
3,360,247,847.80/5,038,860,117.30 = 1,289,281,319.80/x - Step 3: Cross multiply
3,360,247,847.80x = 5,038,860,117.30 × 1,289,281,319.80 - Step 4: Simplify right side
3,360,247,847.80x = 6,496,508,222,320,126,976 - Step 5: Solve for x
x = 6,496,508,222,320,126,976/3,360,247,847.80 - Step 6: Final answer
x = 1,933,341,978.50
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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.