Finding the Fourth Proportional to 19,489,564.48, 29,224,273.56 and 8,555,278.72
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Solution
The fourth proportional to 19,489,564.48, 29,224,273.56 and 8,555,278.72 is: 12,828,496.29
Step by Step Solution
- Step 1: Write the proportion equation
19,489,564.48 : 29,224,273.56 = 8,555,278.72 : x - Step 2: Convert to fraction form
19,489,564.48/29,224,273.56 = 8,555,278.72/x - Step 3: Cross multiply
19,489,564.48x = 29,224,273.56 × 8,555,278.72 - Step 4: Simplify right side
19,489,564.48x = 250,021,805,695,326.66 - Step 5: Solve for x
x = 250,021,805,695,326.66/19,489,564.48 - Step 6: Final answer
x = 12,828,496.29
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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.