Finding the Fourth Proportional to 7,830,273,312.80, 11,745,409,969.20 and 5,503,837,191.20
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Solution
The fourth proportional to 7,830,273,312.80, 11,745,409,969.20 and 5,503,837,191.20 is: 8,255,755,786.80
Step by Step Solution
- Step 1: Write the proportion equation
7,830,273,312.80 : 11,745,409,969.20 = 5,503,837,191.20 : x - Step 2: Convert to fraction form
7,830,273,312.80/11,745,409,969.20 = 5,503,837,191.20/x - Step 3: Cross multiply
7,830,273,312.80x = 11,745,409,969.20 × 5,503,837,191.20 - Step 4: Simplify right side
7,830,273,312.80x = 64,644,824,214,374,211,584 - Step 5: Solve for x
x = 64,644,824,214,374,211,584/7,830,273,312.80 - Step 6: Final answer
x = 8,255,755,786.80
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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.