Finding the Fourth Proportional to 854,620,203.90, 1,281,930,305.85 and 797,289,311.10
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Solution
The fourth proportional to 854,620,203.90, 1,281,930,305.85 and 797,289,311.10 is: 1,195,933,966.65
Step by Step Solution
- Step 1: Write the proportion equation
854,620,203.90 : 1,281,930,305.85 = 797,289,311.10 : x - Step 2: Convert to fraction form
854,620,203.90/1,281,930,305.85 = 797,289,311.10/x - Step 3: Cross multiply
854,620,203.90x = 1,281,930,305.85 × 797,289,311.10 - Step 4: Simplify right side
854,620,203.90x = 1,022,069,330,429,358,720 - Step 5: Solve for x
x = 1,022,069,330,429,358,720/854,620,203.90 - Step 6: Final answer
x = 1,195,933,966.65
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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.