Finding the Fourth Proportional to 28,440,811.13, 39,237,151.60 and 16,517,594.94
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Solution
The fourth proportional to 28,440,811.13, 39,237,151.60 and 16,517,594.94 is: 22,787,795.11
Step by Step Solution
- Step 1: Write the proportion equation
28,440,811.13 : 39,237,151.60 = 16,517,594.94 : x - Step 2: Convert to fraction form
28,440,811.13/39,237,151.60 = 16,517,594.94/x - Step 3: Cross multiply
28,440,811.13x = 39,237,151.60 × 16,517,594.94 - Step 4: Simplify right side
28,440,811.13x = 648,103,376,729,478 - Step 5: Solve for x
x = 648,103,376,729,478/28,440,811.13 - Step 6: Final answer
x = 22,787,795.11
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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.