Finding the Fourth Proportional to 40,072,319.38, 55,299,818.37 and 22,668,292.18
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Solution
The fourth proportional to 40,072,319.38, 55,299,818.37 and 22,668,292.18 is: 31,282,253.18
Step by Step Solution
- Step 1: Write the proportion equation
40,072,319.38 : 55,299,818.37 = 22,668,292.18 : x - Step 2: Convert to fraction form
40,072,319.38/55,299,818.37 = 22,668,292.18/x - Step 3: Cross multiply
40,072,319.38x = 55,299,818.37 × 22,668,292.18 - Step 4: Simplify right side
40,072,319.38x = 1,253,552,440,312,091.25 - Step 5: Solve for x
x = 1,253,552,440,312,091.25/40,072,319.38 - Step 6: Final answer
x = 31,282,253.18
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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.