Finding the Fourth Proportional to 8,261,971,275.80, 12,395,388,380.96 and 2,665,803,381.08
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Solution
The fourth proportional to 8,261,971,275.80, 12,395,388,380.96 and 2,665,803,381.08 is: 3,999,489,607.59
Step by Step Solution
- Step 1: Write the proportion equation
8,261,971,275.80 : 12,395,388,380.96 = 2,665,803,381.08 : x - Step 2: Convert to fraction form
8,261,971,275.80/12,395,388,380.96 = 2,665,803,381.08/x - Step 3: Cross multiply
8,261,971,275.80x = 12,395,388,380.96 × 2,665,803,381.08 - Step 4: Simplify right side
8,261,971,275.80x = 33,043,668,255,762,911,232 - Step 5: Solve for x
x = 33,043,668,255,762,911,232/8,261,971,275.80 - Step 6: Final answer
x = 3,999,489,607.59
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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.