Finding the Fourth Proportional to 8,761,904,911.60, 13,142,857,367.40 and 2,551,272,809.20
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Solution
The fourth proportional to 8,761,904,911.60, 13,142,857,367.40 and 2,551,272,809.20 is: 3,826,909,213.80
Step by Step Solution
- Step 1: Write the proportion equation
8,761,904,911.60 : 13,142,857,367.40 = 2,551,272,809.20 : x - Step 2: Convert to fraction form
8,761,904,911.60/13,142,857,367.40 = 2,551,272,809.20/x - Step 3: Cross multiply
8,761,904,911.60x = 13,142,857,367.40 × 2,551,272,809.20 - Step 4: Simplify right side
8,761,904,911.60x = 33,531,014,636,641,509,376 - Step 5: Solve for x
x = 33,531,014,636,641,509,376/8,761,904,911.60 - Step 6: Final answer
x = 3,826,909,213.80
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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.