Finding the Fourth Proportional to 28,731,174.96, 39,649,858.83 and 15,679,274.62
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Solution
The fourth proportional to 28,731,174.96, 39,649,858.83 and 15,679,274.62 is: 21,637,855.96
Step by Step Solution
- Step 1: Write the proportion equation
28,731,174.96 : 39,649,858.83 = 15,679,274.62 : x - Step 2: Convert to fraction form
28,731,174.96/39,649,858.83 = 15,679,274.62/x - Step 3: Cross multiply
28,731,174.96x = 39,649,858.83 × 15,679,274.62 - Step 4: Simplify right side
28,731,174.96x = 621,681,025,239,801.88 - Step 5: Solve for x
x = 621,681,025,239,801.88/28,731,174.96 - Step 6: Final answer
x = 21,637,855.96
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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.