Finding the Fourth Proportional to 21,115,197,251.64, 29,139,270,644.70 and 11,600,628,324.12
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Solution
The fourth proportional to 21,115,197,251.64, 29,139,270,644.70 and 11,600,628,324.12 is: 16,009,031,047.95
Step by Step Solution
- Step 1: Write the proportion equation
21,115,197,251.64 : 29,139,270,644.70 = 11,600,628,324.12 : x - Step 2: Convert to fraction form
21,115,197,251.64/29,139,270,644.70 = 11,600,628,324.12/x - Step 3: Cross multiply
21,115,197,251.64x = 29,139,270,644.70 × 11,600,628,324.12 - Step 4: Simplify right side
21,115,197,251.64x = 338,033,848,385,105,297,408 - Step 5: Solve for x
x = 338,033,848,385,105,297,408/21,115,197,251.64 - Step 6: Final answer
x = 16,009,031,047.95
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1.5x scale
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.