Finding the Fourth Proportional to 128,892,423,692.44, 177,847,932,400.84 and 71,798,313,358.36
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Solution
The fourth proportional to 128,892,423,692.44, 177,847,932,400.84 and 71,798,313,358.36 is: 99,068,519,427.65
Step by Step Solution
- Step 1: Write the proportion equation
128,892,423,692.44 : 177,847,932,400.84 = 71,798,313,358.36 : x - Step 2: Convert to fraction form
128,892,423,692.44/177,847,932,400.84 = 71,798,313,358.36/x - Step 3: Cross multiply
128,892,423,692.44x = 177,847,932,400.84 × 71,798,313,358.36 - Step 4: Simplify right side
128,892,423,692.44x = 12,769,181,580,651,936,088,064 - Step 5: Solve for x
x = 12,769,181,580,651,936,088,064/128,892,423,692.44 - Step 6: Final answer
x = 99,068,519,427.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.