Finding the Fourth Proportional to 28,128,981.12, 42,195,104.64 and 10,857,279.84
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Solution
The fourth proportional to 28,128,981.12, 42,195,104.64 and 10,857,279.84 is: 16,286,550.05
Step by Step Solution
- Step 1: Write the proportion equation
28,128,981.12 : 42,195,104.64 = 10,857,279.84 : x - Step 2: Convert to fraction form
28,128,981.12/42,195,104.64 = 10,857,279.84/x - Step 3: Cross multiply
28,128,981.12x = 42,195,104.64 × 10,857,279.84 - Step 4: Simplify right side
28,128,981.12x = 458,124,058,954,562.44 - Step 5: Solve for x
x = 458,124,058,954,562.44/28,128,981.12 - Step 6: Final answer
x = 16,286,550.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.