Finding the Fourth Proportional to 21,356,135.88, 29,474,056.08 and 12,064,097.76
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Solution
The fourth proportional to 21,356,135.88, 29,474,056.08 and 12,064,097.76 is: 16,649,917.19
Step by Step Solution
- Step 1: Write the proportion equation
21,356,135.88 : 29,474,056.08 = 12,064,097.76 : x - Step 2: Convert to fraction form
21,356,135.88/29,474,056.08 = 12,064,097.76/x - Step 3: Cross multiply
21,356,135.88x = 29,474,056.08 × 12,064,097.76 - Step 4: Simplify right side
21,356,135.88x = 355,577,893,932,842.38 - Step 5: Solve for x
x = 355,577,893,932,842.38/21,356,135.88 - Step 6: Final answer
x = 16,649,917.19
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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.