Finding the Fourth Proportional to 850,664,140.90, 1,275,996,211.35 and 486,859,315.30
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Solution
The fourth proportional to 850,664,140.90, 1,275,996,211.35 and 486,859,315.30 is: 730,288,972.95
Step by Step Solution
- Step 1: Write the proportion equation
850,664,140.90 : 1,275,996,211.35 = 486,859,315.30 : x - Step 2: Convert to fraction form
850,664,140.90/1,275,996,211.35 = 486,859,315.30/x - Step 3: Cross multiply
850,664,140.90x = 1,275,996,211.35 × 486,859,315.30 - Step 4: Simplify right side
850,664,140.90x = 621,230,641,783,255,040 - Step 5: Solve for x
x = 621,230,641,783,255,040/850,664,140.90 - Step 6: Final answer
x = 730,288,972.95
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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.