Finding the Fourth Proportional to 1,201,214,318.80, 1,801,821,478.20 and 943,225,301.20
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Solution
The fourth proportional to 1,201,214,318.80, 1,801,821,478.20 and 943,225,301.20 is: 1,414,837,951.80
Step by Step Solution
- Step 1: Write the proportion equation
1,201,214,318.80 : 1,801,821,478.20 = 943,225,301.20 : x - Step 2: Convert to fraction form
1,201,214,318.80/1,801,821,478.20 = 943,225,301.20/x - Step 3: Cross multiply
1,201,214,318.80x = 1,801,821,478.20 × 943,225,301.20 - Step 4: Simplify right side
1,201,214,318.80x = 1,699,523,606,483,824,384 - Step 5: Solve for x
x = 1,699,523,606,483,824,384/1,201,214,318.80 - Step 6: Final answer
x = 1,414,837,951.80
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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.