Finding the Fourth Proportional to 783,262,373.08, 1,082,452,289.90 and 641,910,692.36
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Solution
The fourth proportional to 783,262,373.08, 1,082,452,289.90 and 641,910,692.36 is: 887,107,210.48
Step by Step Solution
- Step 1: Write the proportion equation
783,262,373.08 : 1,082,452,289.90 = 641,910,692.36 : x - Step 2: Convert to fraction form
783,262,373.08/1,082,452,289.90 = 641,910,692.36/x - Step 3: Cross multiply
783,262,373.08x = 1,082,452,289.90 × 641,910,692.36 - Step 4: Simplify right side
783,262,373.08x = 694,837,698,856,376,448 - Step 5: Solve for x
x = 694,837,698,856,376,448/783,262,373.08 - Step 6: Final answer
x = 887,107,210.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.