Finding the Fourth Proportional to 28,884,739.70, 39,865,219 and 18,289,114.41
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Solution
The fourth proportional to 28,884,739.70, 39,865,219 and 18,289,114.41 is: 25,241,686.75
Step by Step Solution
- Step 1: Write the proportion equation
28,884,739.70 : 39,865,219 = 18,289,114.41 : x - Step 2: Convert to fraction form
28,884,739.70/39,865,219 = 18,289,114.41/x - Step 3: Cross multiply
28,884,739.70x = 39,865,219 × 18,289,114.41 - Step 4: Simplify right side
28,884,739.70x = 729,099,551,270,705.75 - Step 5: Solve for x
x = 729,099,551,270,705.75/28,884,739.70 - Step 6: Final answer
x = 25,241,686.75
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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.