Finding the Fourth Proportional to 646,885,623.80, 970,328,435.70 and 629,879,511.80
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Solution
The fourth proportional to 646,885,623.80, 970,328,435.70 and 629,879,511.80 is: 944,819,267.70
Step by Step Solution
- Step 1: Write the proportion equation
646,885,623.80 : 970,328,435.70 = 629,879,511.80 : x - Step 2: Convert to fraction form
646,885,623.80/970,328,435.70 = 629,879,511.80/x - Step 3: Cross multiply
646,885,623.80x = 970,328,435.70 × 629,879,511.80 - Step 4: Simplify right side
646,885,623.80x = 611,190,001,364,373,632 - Step 5: Solve for x
x = 611,190,001,364,373,632/646,885,623.80 - Step 6: Final answer
x = 944,819,267.70
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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.