Finding the Fourth Proportional to 1,201,214,315.80, 1,801,821,473.70 and 943,225,298.20
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Solution
The fourth proportional to 1,201,214,315.80, 1,801,821,473.70 and 943,225,298.20 is: 1,414,837,947.30
Step by Step Solution
- Step 1: Write the proportion equation
1,201,214,315.80 : 1,801,821,473.70 = 943,225,298.20 : x - Step 2: Convert to fraction form
1,201,214,315.80/1,801,821,473.70 = 943,225,298.20/x - Step 3: Cross multiply
1,201,214,315.80x = 1,801,821,473.70 × 943,225,298.20 - Step 4: Simplify right side
1,201,214,315.80x = 1,699,523,596,833,846,016 - Step 5: Solve for x
x = 1,699,523,596,833,846,016/1,201,214,315.80 - Step 6: Final answer
x = 1,414,837,947.30
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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.