Finding the Fourth Proportional to 854,620,211.40, 1,281,930,317.10 and 797,289,318.60
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Solution
The fourth proportional to 854,620,211.40, 1,281,930,317.10 and 797,289,318.60 is: 1,195,933,977.90
Step by Step Solution
- Step 1: Write the proportion equation
854,620,211.40 : 1,281,930,317.10 = 797,289,318.60 : x - Step 2: Convert to fraction form
854,620,211.40/1,281,930,317.10 = 797,289,318.60/x - Step 3: Cross multiply
854,620,211.40x = 1,281,930,317.10 × 797,289,318.60 - Step 4: Simplify right side
854,620,211.40x = 1,022,069,349,013,340,928 - Step 5: Solve for x
x = 1,022,069,349,013,340,928/854,620,211.40 - Step 6: Final answer
x = 1,195,933,977.90
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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.