Finding the Fourth Proportional to 2,662,787,351.05, 3,994,181,026.58 and 1,111,192,207.45
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Solution
The fourth proportional to 2,662,787,351.05, 3,994,181,026.58 and 1,111,192,207.45 is: 1,666,788,311.18
Step by Step Solution
- Step 1: Write the proportion equation
2,662,787,351.05 : 3,994,181,026.58 = 1,111,192,207.45 : x - Step 2: Convert to fraction form
2,662,787,351.05/3,994,181,026.58 = 1,111,192,207.45/x - Step 3: Cross multiply
2,662,787,351.05x = 3,994,181,026.58 × 1,111,192,207.45 - Step 4: Simplify right side
2,662,787,351.05x = 4,438,302,831,874,781,184 - Step 5: Solve for x
x = 4,438,302,831,874,781,184/2,662,787,351.05 - Step 6: Final answer
x = 1,666,788,311.18
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Double scale
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Similar ratio
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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.