Finding the Fourth Proportional to 1,401,203,305.80, 2,101,804,958.70 and 885,225,270.60
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Solution
The fourth proportional to 1,401,203,305.80, 2,101,804,958.70 and 885,225,270.60 is: 1,327,837,905.90
Step by Step Solution
- Step 1: Write the proportion equation
1,401,203,305.80 : 2,101,804,958.70 = 885,225,270.60 : x - Step 2: Convert to fraction form
1,401,203,305.80/2,101,804,958.70 = 885,225,270.60/x - Step 3: Cross multiply
1,401,203,305.80x = 2,101,804,958.70 × 885,225,270.60 - Step 4: Simplify right side
1,401,203,305.80x = 1,860,570,863,313,629,440 - Step 5: Solve for x
x = 1,860,570,863,313,629,440/1,401,203,305.80 - Step 6: Final answer
x = 1,327,837,905.90
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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.