Finding the Fourth Proportional to 21,732,112.74, 29,977,828.22 and 13,569,178.98
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Solution
The fourth proportional to 21,732,112.74, 29,977,828.22 and 13,569,178.98 is: 18,717,670.09
Step by Step Solution
- Step 1: Write the proportion equation
21,732,112.74 : 29,977,828.22 = 13,569,178.98 : x - Step 2: Convert to fraction form
21,732,112.74/29,977,828.22 = 13,569,178.98/x - Step 3: Cross multiply
21,732,112.74x = 29,977,828.22 × 13,569,178.98 - Step 4: Simplify right side
21,732,112.74x = 406,774,516,548,874.81 - Step 5: Solve for x
x = 406,774,516,548,874.81/21,732,112.74 - Step 6: Final answer
x = 18,717,670.09
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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.