Finding the Fourth Proportional to 75,349,828.80, 113,024,743.20 and 74,342,059.20
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Solution
The fourth proportional to 75,349,828.80, 113,024,743.20 and 74,342,059.20 is: 111,513,088.80
Step by Step Solution
- Step 1: Write the proportion equation
75,349,828.80 : 113,024,743.20 = 74,342,059.20 : x - Step 2: Convert to fraction form
75,349,828.80/113,024,743.20 = 74,342,059.20/x - Step 3: Cross multiply
75,349,828.80x = 113,024,743.20 × 74,342,059.20 - Step 4: Simplify right side
75,349,828.80x = 8,402,492,150,039,198 - Step 5: Solve for x
x = 8,402,492,150,039,198/75,349,828.80 - Step 6: Final answer
x = 111,513,088.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.