Finding the Fourth Proportional to 28,436,721.12, 39,247,367.76 and 17,429,593.68
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Solution
The fourth proportional to 28,436,721.12, 39,247,367.76 and 17,429,593.68 is: 24,055,715.50
Step by Step Solution
- Step 1: Write the proportion equation
28,436,721.12 : 39,247,367.76 = 17,429,593.68 : x - Step 2: Convert to fraction form
28,436,721.12/39,247,367.76 = 17,429,593.68/x - Step 3: Cross multiply
28,436,721.12x = 39,247,367.76 × 17,429,593.68 - Step 4: Simplify right side
28,436,721.12x = 684,065,673,066,331.75 - Step 5: Solve for x
x = 684,065,673,066,331.75/28,436,721.12 - Step 6: Final answer
x = 24,055,715.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.