Finding the Fourth Proportional to 112,101,830.71, 154,700,622.69 and 62,542,212.07
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Solution
The fourth proportional to 112,101,830.71, 154,700,622.69 and 62,542,212.07 is: 86,308,306.39
Step by Step Solution
- Step 1: Write the proportion equation
112,101,830.71 : 154,700,622.69 = 62,542,212.07 : x - Step 2: Convert to fraction form
112,101,830.71/154,700,622.69 = 62,542,212.07/x - Step 3: Cross multiply
112,101,830.71x = 154,700,622.69 × 62,542,212.07 - Step 4: Simplify right side
112,101,830.71x = 9,675,319,151,639,034 - Step 5: Solve for x
x = 9,675,319,151,639,034/112,101,830.71 - Step 6: Final answer
x = 86,308,306.39
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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.