Finding the Fourth Proportional to 69,192,128,752.61, 103,777,706,443.87 and 18,831,486,936.19
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Solution
The fourth proportional to 69,192,128,752.61, 103,777,706,443.87 and 18,831,486,936.19 is: 28,244,376,324.26
Step by Step Solution
- Step 1: Write the proportion equation
69,192,128,752.61 : 103,777,706,443.87 = 18,831,486,936.19 : x - Step 2: Convert to fraction form
69,192,128,752.61/103,777,706,443.87 = 18,831,486,936.19/x - Step 3: Cross multiply
69,192,128,752.61x = 103,777,706,443.87 × 18,831,486,936.19 - Step 4: Simplify right side
69,192,128,752.61x = 1,954,288,523,165,394,796,544 - Step 5: Solve for x
x = 1,954,288,523,165,394,796,544/69,192,128,752.61 - Step 6: Final answer
x = 28,244,376,324.26
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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.