Finding the Fourth Proportional to 845,782,909.68, 1,269,919,755.18 and 473,021,121.36
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Solution
The fourth proportional to 845,782,909.68, 1,269,919,755.18 and 473,021,121.36 is: 710,228,191.84
Step by Step Solution
- Step 1: Write the proportion equation
845,782,909.68 : 1,269,919,755.18 = 473,021,121.36 : x - Step 2: Convert to fraction form
845,782,909.68/1,269,919,755.18 = 473,021,121.36/x - Step 3: Cross multiply
845,782,909.68x = 1,269,919,755.18 × 473,021,121.36 - Step 4: Simplify right side
845,782,909.68x = 600,698,866,632,460,288 - Step 5: Solve for x
x = 600,698,866,632,460,288/845,782,909.68 - Step 6: Final answer
x = 710,228,191.84
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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.