Finding the Fourth Proportional to 28,377,280.19, 39,160,645.97 and 15,324,538.03
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Solution
The fourth proportional to 28,377,280.19, 39,160,645.97 and 15,324,538.03 is: 21,147,862.11
Step by Step Solution
- Step 1: Write the proportion equation
28,377,280.19 : 39,160,645.97 = 15,324,538.03 : x - Step 2: Convert to fraction form
28,377,280.19/39,160,645.97 = 15,324,538.03/x - Step 3: Cross multiply
28,377,280.19x = 39,160,645.97 × 15,324,538.03 - Step 4: Simplify right side
28,377,280.19x = 600,118,808,387,040.88 - Step 5: Solve for x
x = 600,118,808,387,040.88/28,377,280.19 - Step 6: Final answer
x = 21,147,862.11
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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.