Finding the Fourth Proportional to 68,497,965.94, 94,540,925.57 and 40,636,141.24
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Solution
The fourth proportional to 68,497,965.94, 94,540,925.57 and 40,636,141.24 is: 56,086,021.70
Step by Step Solution
- Step 1: Write the proportion equation
68,497,965.94 : 94,540,925.57 = 40,636,141.24 : x - Step 2: Convert to fraction form
68,497,965.94/94,540,925.57 = 40,636,141.24/x - Step 3: Cross multiply
68,497,965.94x = 94,540,925.57 × 40,636,141.24 - Step 4: Simplify right side
68,497,965.94x = 3,841,778,404,219,667 - Step 5: Solve for x
x = 3,841,778,404,219,667/68,497,965.94 - Step 6: Final answer
x = 56,086,021.70
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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.